Question

Andy walks along the outside of a circular water tank. When he gets back to his starting point he has walked 157 feet. What is the diameter of the water tank? Round to the nearest whole number. (Use 3.14 for pi.)

Answer 1

$C = \pi d$
$157 = \pi d$
157 = (3.14)d
d = 50

Answer 2

You would do 157/3.14(or pi) which equals 50 feet for the diameter