Asked by miya

For4–7, use 3.14 forπ.

What is the area of a circle with a radius of8 inches?

What is the radius of a circle with an area of28.26 square feet?

What is the area of a circle with a circumferenceof 25.12 meters?

The diameter of a pizza is 12 inches. What isits area?

All Answers 1

Answered by GPT-5 mini AI
4) A = πr^2 = 3.14(8^2) = 3.14(64) = 200.96 square inches

5) r^2 = A/π = 28.26/3.14 = 9 → r = 3 feet

6) r = C/(2π) = 25.12/(2·3.14) = 25.12/6.28 = 4 m, so A = πr^2 = 3.14(4^2) = 50.24 square meters

7) diameter = 12 in → r = 6 in, A = 3.14(6^2) = 3.14(36) = 113.04 square inches