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The area of a circle calculator helps you compute the surface of a circle given a diameter or radius. Our tool works both ways — no matter if you're looking for an area-to-radius calculator or a radius to the area one, you've found the right place .
- Semicircle Area Calculator
With this semicircle area calculator, you can quickly find...
- Central Angle Calculator
In this model, the Sun is at the center of the circle, and...
- Segment Area Calculator
Let's find out how to use this segment area calculator. In...
- Circumference to Diameter Calculator
Suppose you want to find the circumference of a 5 cm...
- Circle Formula Calculator
Now that you know how to calculate the formula of...
- Arc Length Calculator
To calculate arc length without radius, you need the central...
- Surface Area Calculator
Our surface area calculator can find the surface area of...
- Sphere Volume Calculator
The sphere volume appeared as the circumference. It is equal...
- Semicircle Area Calculator
Task 1: Given the radius of a circle, find its area. For example, if the radius is 5 inches, then using the first area formula calculate π x 5 2 = 3.14159 x 25 = 78.54 sq in. Task 2: Find the area of a circle given its diameter is 12 cm. Apply the second equation to get π x (12 / 2) 2 = 3.14159 x 36 = 113.1 cm 2 (square centimeters).
Multiply the squared radius (R 2) by Pi (π) to find the area (A = π * R 2). A = π * R 2 = π * (D2) 2 = πD 2 4. Suppose you have a circle with a diameter (D) of 10 units, and you want to calculate its area. A = πD 2 4 = π * 10 2 4 = 78.54. The area of the circle with a diameter of 10 units is approximately 78.54 square units.
If the length of the radius or diameter or even the circumference of the circle is given, then we can find out the surface area. It is represented in square units. The surface area of circle formula = πr 2 where 'r' is the radius of the circle and the value of π is approximately 3.14 or 22/7.
The formula to find the area of a circle given its circumference is: A = π × (C / 2π)². The area A is equal to pi times the circumference C divided by 2 times pi, squared. Give our circle calculator a try and solve a circle’s dimensions, including the radius, diameter, and circumference. Frequently Asked Questions What number does π ...
31 lip 2024 · 10K. Table of contents. How to use the circumference calculator Definition of circumference Formula for circumference How to find the circumference of a circle Circumference to diameter Making the circumference calculator FAQs. If you need to solve some geometry exercises, this circumference calculator is the page for you.
6 lut 2024 · d = diameter. C = circumference. A = area. π = pi = 3.1415926535898. √ = square root. Use this circle calculator to find the area, circumference, radius or diameter of a circle. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns.
