Question

A basketball team wants to paint half of a free-throw circle grey. If the circumference of the free-throw circle is 30.77 feet, what is the area that will be painted grey? Use 3.14 for π, and round to the nearest square foot

Answer 1

37.7 ft²

Explanation:

2×3.14×r=30.77

Divide both sides by 2

3.14×r=15.385

Divide both sides by 3.14

r≈4.9

3.14×r²

3.14×4.9²=

24.01×3.14≈

75.4

75.4÷2=

37.7