Question

The cost of painting the circular traffic sign shown below is $3.50 per square foot. How much, to the nearest dollar, will it cost to paint the sign if its diameter measures 36 inches?

A
$20

B
$25

C
$30

D
$35

Answer 1

Radius is 18

radius squared x pi = area

18 x 18 = 324

324 x pi = 1017.876

1017.876/144=7

We divide by 144 because it is converting with square units instead of units so we square the conversion

7 x 3.5 = 24.5

round up to 25

hope this helps your answer is 25

Explanation: