Question

How do you solve for an area of a circle?

Answer 1

Identify the radius of a circle. The radius is the length from the center of a circle to the edge of the circle. You can measure this in any direction and the radius will be the same. The radius is also one half of the diameter of a circle. The diameter is the line segment that passes through the center and connects opposite sides of the circle.[1]

The radius will generally be provided to you. It can be difficult to measure to the exact center of a circle, unless the center is already marked for you on a circle drawn on paper.

For this example, assume that you are told that the radius of a given circle is 6 cm.

Answer 2

well the formula for the area of a circle is A =
`\pi r^2`

r is for the radius

which is half the size or number of the diameter

so ex. lets say that the diameter of a circle is 10, so that makes the radius 5

A =
`\pi`
`5^2`

A =
`\pi * 25`

A = 78.54

Ta -Da!!

Note: sometimes is the test ask you to replace
`\pi` for 3.14, it would still work