Question

A circular rug has a radius of 4 feet. Which of the following is the closest to the number of square inches the rug covers?

A. 55.26
B. 50.24
C. 29.7
D. 33.6

Answer 1

B. 50.24

Explanation:

to find the area of a circle you need to use the formula

a=r²π

since the radius is 4 we put that into the equation, lets use 3.14 for pi

a=(4)²×3.14

always do exponents first

a=16×3.14

a=50.24