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2 dni temu · You can find the diameter of a circle by multiplying the radius of a circle by two: Diameter = 2 × Radius. The formula to calculate the area of a circle using radius is as follows: Area of a circle = π × r 2. And, to calculate the area of a circle using diameter use the following equation: Area of a circle = π × (d/2) 2. where:
- Semicircle Area Calculator
With this semicircle area calculator, you can quickly find...
- Central Angle Calculator
The central angle is a quarter of a circle: 360 ° / 4 = 90 °...
- Segment Area Calculator
With our segment area calculator you can find area of a...
- Circumference to Diameter Calculator
Suppose you want to find the circumference of a 5 cm...
- Circle Formula Calculator
Formula to calculate the diameter of a circle given its...
- Arc Length Calculator
Arc length formula Area of a sector of a circle How to find...
- Surface Area Calculator
Our surface area calculator can find the surface area of...
- Sphere Volume Calculator
A sphere is a perfectly round geometrical 3D object. The...
- 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).
31 sty 2024 · You can find the area of a circle using the radius, the diameter, or the circumference. 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.
This calculator will calculate the area of a circle given its diameter, using the famous formula area = pi times (d/2) squared. It supports different units such as meters, feet, and inches.
This calculator will allow you compute the area of circles, provided that you provide the diameter. The diameter provided needs to be any valid positive expression. It could be a number like '2', it could be a fraction like '3/4' or it could a expression involving square roots, like '3sqrt (3)'.
5 dni temu · Formula to calculate the diameter of a circle given its radius, or vice versa. The formula of the diameter of a circle is the most straightforward of the equations and says that diameter ( d) equals twice the radius ( r): d = 2r. r = d/2. The calculation of circumference and area of a circle formulas are more tricky.
2 dni temu · You can calculate it as follows: If you know the radius or diameter of the circle, the area of the circle formula is: a = πr² = π × (d / 2)². If radius and diameter are unknown, you can calculate it from the circumference: a = c² / 4π. If you are interested in calculations of some fraction of a circle, check:
