Math: The circumference of a circle is 22rr inches. Find the area of that circle. Substitute 3.14 pi. Express your answer to the hundredths place.

Answer 1

The formula for the circumference of a circle is C = 2πr, where r is the radius of the circle.

Given that the circumference of the circle is 22π inches, we can write:

22π = 2πr

Dividing both sides by 2π, we get:

r = 11

Now, the formula for the area of a circle is A = πr^2. Substituting the value of r, we get:

A = π(11)^2
A = 121π

Using 3.14 as an approximation for π, we get:

A ≈ 121 * 3.14
A ≈ 379.94

Therefore, the area of the circle is approximately 379.94 square inches.