Question

How to find area of a circle?

Answer 1

To find the area of a circle, you will need to know its radius (the distance from the center of the circle to any point on its edge). Once you have the radius, you can use the following formula:

Area of circle = π x radius^2

Here's how to use this formula:

1. Measure the radius of the circle. If you don't have a ruler or measuring tape, you can use a circular object to estimate the radius.
2. Square the radius by multiplying it by itself. For example, if the radius is 5 inches, you would calculate 5 x 5 = 25.
3. Multiply the squared radius by pi (π), which is a mathematical constant that represents the ratio of the circumference of a circle to its diameter. Pi is approximately equal to 3.14. For example, if the squared radius is 25, you would calculate 25 x 3.14 = 78.5.
4. Round the answer to the nearest decimal point, if necessary. The unit of measure for the area will be squared units, such as square inches or square meters.

So, the area of a circle with a radius of 5 inches would be approximately 78.5 square inches.

Answer 2

To find the area of a circle, you can use the formula: Area = π * radius^2 where π (pi) is approximately 3.14159 and the radius is the distance from the center of the circle to any point on its edge. Simply square the radius, multiply by π, and you will find the area of the circle.