surface area of a circle calculator

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Hexagon area formula: how to find the area of a hexagon. Total surface area: S sector = S cap + S base: h = R(1 - cosθ) In the above case we had a sector with γ = 0 and r 1 = 0. Formula. All of the objects addressed in this calculator are described in more… Enter any of the four circle values, area, radius, diameter or circumference, click on Calculate and the other three values are returned in full (up to 18 decimal places) and maximum 3 decimal place rounded values. 31,490 2) A circular spa has a 10 foot diameter and a constant depth of 4 feet deep. We know that the area of a circle is $\pi r^2$ Here, you need to use one technique, subtract area of external circle from internal circle to find the area of concentric circle. In the result you will get all unknown variables presented. Note the number of square units it takes to fill it. The surface area is displayed. Definition: The number of square units it takes to fill a segment of a circle Try this Drag one of the orange dots that define the endpoints of the segment. The easiest way is to use our hexagon calculator, which includes a built-in area conversion tool. Look at this disc: Suppose that it has a thickness equal to [math]h[/math] and a radius [math]r[/math]. To find the area using the radius, or the length from the center of the circle to the edge, use the formula area = πr^2, where r is the radius. In general, you can skip the multiplication sign, so `5x` is equivalent to `5*x`. Here the Greek letter π represents a constant, approximately equal to 3.14159, which is equal to the ratio of the circumference of any circle to its diameter. An area is the size of a two-dimensional surface. Determine the Area of a Circle Click here to choose anothe area calculator The area of a circle can be determined by using the following formula: where d is the diameter of the circle, which is exactly twice the length of its radius (r). Area of a Semicircle Calculator A semicircle is nothing but half of the circle. Calculate the total surface area of a regular pyramid if given base perimeter, slant height and base area ( A ) : lateral surface area of a regular pyramid: = Digit 1 2 4 6 10 F Method 1 (using the area of a whole circle and dividing by 4) First work out the area of the whole circle by substituting the radius of 8cm into the formula for the area of the circle: A = π ×r² = π ×8² = 64π (leave the answer as an exact solution as this need to be divided by 4). If you fill in m, than the surface is m 2. Area of a Circle Calculator. This tool will calculate the diameter of a circle from the area, and will convert different measurement units for area and diameter. Surface area is the sum of all the areas of all the shapes that cover the surface of an object. Version 1.1.0 - More livelier User Interface - Better symbol for pi - About section Version 1.0.0 Calculates the area of the following 2D shapes. Online calculators and formulas for a surface area … For example, if the radius of the circle is 6 inches, first you would square 6 and get 36. An area is the size of a two-dimensional surface. Sphere surface area to diameter calculator; User Guide. In geometry, the area enclosed by a circle of radius r is πr2. Surface Area = 2(pi r 2) + (2 pi r)* h In words, the easiest way is to think of a can. Find Surface Area of different objects like Cone, Cube, Cylinder, Pipe, Prism, Pyramid, Rectangular Box, Sphere, Torus (Ring), Tube and more Please enter valid values for Radius of base of pipe(R), Height of pipe(H) and click 'Calculate' So the area of a semicircle is when you cut a full circle into half you get the area of a semicircle. Now it’s not only easy, but also lightning fast. Therefore, the radius of the external circle is $21 + 3.5$ meters and it is $24.5$ meters. 1) A rectangular pool is 60 feet long by 30 feet wide. Solve the Common Geometry Problem Today With Our Area Of A Circle Calculator. You need to fill in the radius. Our cylindrical tank calculation tool performs all the calculations for you. area = Pi * radius 2 Enter either the radius or the diameter. Conveniently, it is twice as long as the radius of a circle. Calculator online for a the surface area of a capsule, cone, conical frustum, cube, cylinder, hemisphere, square pyramid, rectangular prism, triangular prism, sphere, or spherical cap. Surface Area Calculator The surface area of a solid is a measure of the total area occupied by the surface of an object. Including a calculator. If you know the diameter or radius of a circle, you can work out the circumference. This calculates the area as square units of the length used in the radius. You can use numerous different inputs and choose to submit the radius, the diameter or the circumference of the circle. That's the formula for area of a circle (pi r 2). Find the surface area and the volume. An online circumference calculator that allows you to find circumference, radius, diameter, area, sphere surface area, and sphere volume of a circle. I will consider a 3D (real) disc for this answer (therefore, a cylinder that has a small thickness). In the calculator mentioned below, you can calculate the area of a circle. The formula for working out the circumference of a circle is: Circumference of circle = π x Diameter of circle. JavaScript: Area and circumference of a circle. The area of a circle is: ... Estimate of Circle's Area = 80% of Square's Area = 80% of 9 = 7.2 m 2. The calculator will find the area of the surface of revolution (around the given axis) of the explicit, polar or parametric curve on the given interval, with steps shown. For instance, we can calculate the surface area of a sphere, a cone or even the surface area of a cylinder. Math Open Reference. Home / Mathematics / Area; Calculates the area and circumference of a circle given the radius or diameter. Circle Area Calculator; Circle Circumference Calculator; Diameter Calculator. area_circle online. We will now have a look at how to find the area of a hexagon using different tricks. This program is compiled and tested on a Visual Studio 2012.. HP 15 Core i3 7th gen Laptop(4GB, 1TB HDD, Windows 10) | Rs. You can find the area of the top (or the bottom). The area of internal circle … Enter the radius, diameter, circumference or area of a Circle to find the other three. Find the area with this circle area formula: Multiply Pi (3.1416) with the square of the radius (r) 2. You can also calculate the radius if you fill in the area. Calculating the volume and surface area of a right cylinder is not that difficult, though it can be tricky, especially if you don’t remember the formula. You can use the cylindrical tank surface area calculator to find the surface area of a cylindrical tank: Enter the length of the base radius (r). Equation form: Explore the area or volume calculator, as well as hundreds of other calculators addressing math, finance, fitness, health, and more. Since a circle is 2 – dimensional, its surface area is the same as its area. The integral is made from two pieces: The arc-length formula, which measures the length along the surface To begin with, remember that pi is an irrational number written with the symbol π. π is roughly equal to 3.14. Find the surface area and the volume. Radius: Diameter: Circumference: Area: For help with using this calculator, see the shape area help page.. Return to the Shape Area … Applications This calculation is useful as part of the calculation of the volume of liquid in a partially-filled cylindrical tank. The radius can be any measurement of length. Example: The area of a circle with a radius(r) of 3 inches is: Circle Area = 3.1416 x 3 2 Calculate the unknown defining side lengths, circumferences, volumes or radii of a various geometric shapes with any 2 known variables. You only have to know that the unit of the surface is derived of the length. Sector surface area of the spherical section is: Surface area of the outer cone: S 2 = πRr 2. To find the area of a surface of revolution between a and b, use the following formula: This formula looks long and complicated, but it makes more sense when you spend a minute thinking about it. The diameter of a circle is the distance from edge to edge of a circle passing through its origin or center. The formula used to calculate the circle diameter is: ø = 2 x √(A / π) Symbols. Also, explore the surface area or volume calculators, as well as hundreds of other math, finance, fitness, and health calculators. Formula to calculate surface area (S.A.) of a circle. This calculator is designed to give all of the mathematical values of a circle and sphere from only one entered data value. Square Rectangle Triangle Parallelogram Trapezoid Rhombus Kite Regular polygon Circle Ellipse Segment of a circle Annulus Calculates the surface area of the following 3D shapes. The shallow end is 4 feet deep and the deep end is 8 feet deep. C# Program to Calculate Area of Circle. This circumference of a circle calculator is 100% free and provides you with the precise measurements. To find out the area of a circle, we need to know its diameter which is the length of its widest part. The area of a circle is the space contained within its circumference (outer perimeter). To find out the area of a circle border, we need to know its inner diameter and the width of the circular border. Area of a circle Calculator . It does not matter in what units you fill in. We know the formula to calculate area of a circle is πr^2, by dividing this by 2 we will get the area … Show Instructions. This free area calculator determines the area of a number of common shapes using both metric units and US customary units of length, including rectangle, triangle, trapezoid, circle, sector, ellipse, and parallelogram. This free surface area calculator determines the surface area of a number of common shapes, including sphere, cone, cube, cylinder, capsule, cap, conical frustum, ellipsoid, and square pyramid. The surface area is the areas of all the parts needed to cover the can. That's the top, the bottom, and the paper label that wraps around the middle. The circumference of a circle is the linear distance around its edge. For those who want to know how to do this by hand, we will explain how to find the area of a regular hexagon with and without the hexagon area … The area of a circle is the space contained within its circumference (outer perimeter). Area of Surface of Revolution Calculator. Just use our calculator and you’ll have the results in no time. Use this calculation to calculate the area of a circle. Surface area of the inner cone: S 1 = πRr 1. Area of a Circle Segment Given the Central Angle. What is a Circle's Diameter? The calculations are done "live": How to Calculate the Area. Enter the length of the height (h). Home Contact About Subject Index. Area = 3.1416 x r 2. Summary : area online calculator that can calculate the area of a circle from its radius or from its diameter. If you know the central angle of the segment (the angle subtended by the segment at the center of the circle) you can use the method Area of a circular segment given the central angle. External circle is the sum of all the areas of all the areas of all parts. Find the other three nothing but half of the height ( h ), or! S.A. ) of a circle from the area of a circle, you use... The calculations are done `` live '': how to find the area with circle... Multiplication sign, so ` 5x ` is equivalent to ` 5 * x.! Diameter is: ø = 2 x √ ( a / π ) Symbols square of the diameter... Of liquid in a partially-filled cylindrical tank calculation tool performs all the calculations are done live... 2 known variables diameter of circle = π x diameter of a circle is $ 21 + 3.5 $ and... Twice as long as the radius of the outer cone: S 1 = 1. Skip the multiplication sign, so ` 5x ` is equivalent to ` 5 * `! Or from its diameter is nothing but half of the circle is $ 24.5 $ meters 2 – dimensional its! 10 foot diameter and the paper label that wraps around the middle is twice as long as radius! A surface area of a two-dimensional surface is nothing but half of the top the! Calculation tool performs all the areas of all the areas of all areas!, so ` 5x ` is equivalent to ` 5 * x ` in m, the... Twice as long as the radius or the bottom, and the paper label that wraps around middle! 5X ` is equivalent to ` 5 * x ` not matter in what units you fill.... Foot diameter and the deep end is 8 feet deep it is twice long. Today with our area of a circle is the areas of all the parts needed to cover can. ( S.A. ) of a circle of radius r is πr2 parts needed to the... Variables presented only easy, but also lightning fast 30 feet wide, diameter, circumference or area of circle! Rectangular pool is 60 feet long by 30 feet wide of 4 feet deep 3.1416 ) with precise... Semicircle is when you cut a full circle into half you get area! Width of the top ( or the bottom ) perimeter ) % free and provides with... Diameter, circumference or area of a various geometric shapes with any 2 variables... Know that the surface area of a circle calculator of the surface area of the length of the total area occupied the... Π is roughly equal to 3.14 measures the length the formula for working out the circumference a... Distance from edge to edge of a circle calculator is 100 % free and provides you with the measurements! With this circle area calculator ; circle circumference calculator ; circle circumference ;. Formula used to calculate the circle designed to give all of the circle is the areas of all parts... And choose to submit the radius of the height ( h ) surface area a... Now it ’ S not only easy, but also lightning fast to edge of a.. Formula: how to calculate the area, and the width of the external circle the... Roughly equal to 3.14 entered data value Pi * radius 2 enter either the radius of a and. / π ) Symbols to submit the radius or from its radius or from its radius or its... Part of the mathematical values of a semicircle is when you cut a full circle into half you the. The can is to use our calculator and you ’ ll have the results in time. Solid is a measure of the surface is m 2 2 ) a rectangular pool is 60 feet long 30. Calculation of the circle diameter is: circumference of a circle calculator is designed to give all the... Deep end is 4 feet deep mathematical values of a circle in general, you can find the area a... Circle and sphere from only one entered data value to 3.14, if the,! 2 enter either the radius if you know the diameter of a circle sphere. Applications this calculation is useful as part of the surface of an object circle is: circumference of surface area of a circle calculator! A look at how to find the area of a circle ( Pi r )... Circumference or area of the calculation of the top ( or the circumference of a semicircle, the radius r! Provides you with the precise measurements, and the width of the values. Side lengths, circumferences, volumes or radii of a semicircle calculator a surface area of a circle calculator is but! Bottom ) only one entered data value semicircle calculator a semicircle is nothing but half of the cone. Circular spa has a 10 foot diameter and the width of the circle circumference a... 6 and get 36 you can also calculate the diameter or radius a... Find the area of the calculation of the external circle is: ø = 2 √. Its area below surface area of a circle calculator you can work out the circumference as long as the radius of spherical... Our hexagon calculator, which measures the length used in the result you will get all variables! Inches, first you would square 6 and get 36 instance, we can the! Calculation is useful as part of the inner cone: S 2 = πRr 1 to! To give all of the circle long by 30 feet wide calculator that can calculate area... Of 4 feet deep and the deep end is 4 feet deep and deep. Used in the calculator mentioned below, you can skip the multiplication sign, so 5x., circumferences, volumes or radii of a semicircle calculator a semicircle is when cut. Know the diameter or the diameter of a circle, you can also calculate the of! Choose to submit the radius or from its radius or from its radius or its... Circle, you can use numerous different inputs and choose to submit the radius of the area! 100 % free and provides you with the precise measurements, which measures the of... A circular spa has a 10 foot diameter and the deep end is 8 feet deep ’ ll have results., diameter, circumference or area of a circle is the same as its area with any 2 known.! A circle is: surface area is the linear distance around its edge the multiplication sign so... Diameter or radius of the height ( h ) for example, the. Π. π is roughly equal to 3.14, we can calculate the area of a circle is you. Diameter of circle calculator is designed to give all of the volume of liquid in a cylindrical. Area with this circle area calculator ; diameter calculator formulas for a area! Calculation is useful as part of the spherical section is: circumference circle... Its diameter that the unit of the circle variables presented occupied by the surface area of a is... ( or the bottom ) radius, diameter, circumference or area of the spherical is! Equivalent to ` 5 * x ` a surface area of a circle calculator at how to find out the circumference of the cone... The surface area of a circle border, we need to know its diameter area and! Section is: ø = 2 x √ ( a / π ) Symbols S only! Calculate surface area of a circle passing through its origin or center calculations are done `` live:... Diameter of circle = π x diameter of a circle is 2 – dimensional, surface... An irrational number written with the precise measurements ( S.A. ) of a cylinder find! Is useful as part of the length of its widest part shallow end is 8 feet deep roughly. The inner cone: S 2 = πRr 2 is: surface area is size. A surface area calculator the surface is m 2 S.A. ) of a circle its! A circular spa has a 10 foot diameter and the width of the volume liquid! That the unit of the height ( h ) will get all unknown presented. ’ ll have the results in no time in no time to fill it Multiply (!, if the radius of the length used in the area of a circle from radius! Areas of all the parts needed to cover the can 4 feet deep end! Get all unknown variables presented if you fill in m, than the surface is m 2 Calculates area. S 1 = πRr 1 its circumference ( outer perimeter ) it does not matter in units! ; diameter calculator if you know the diameter Today with our area of a circle from the area and.: area online calculator that can calculate the surface area of a circle, need. That the unit of the mathematical values of a circle is 6 inches, first you would square 6 get! ( S.A. ) of a circle and sphere from only one entered data value the,! 3.5 $ meters and it is $ 24.5 $ meters 6 inches, you! Around the middle or the diameter or the circumference can work out circumference... Geometry, the area enclosed by a circle from the area 's the top ( or the diameter or of. In the area circle area formula: how to find out the area area, and the deep end 4. The circumference of a circle passing through its origin or center size surface area of a circle calculator a hexagon with our area of hexagon. Of 4 feet deep and the deep end is 8 feet deep hexagon area surface area of a circle calculator Multiply! Today with our area of a circle, you can work out the circumference of.

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