Question

The transportation department has to put a railing along the outer curve of this road. The road is 20 feet wide. What is the length of the outer curve to the nearest foot? Use the value Pi= 3.14.

see comments for diagram

Answer 1

for outer curve, radius is 70 ft

arc length = radius*angle
convert angle to radians
\[L = 70*\frac{70\pi}{180}\]

Answer 2

awesome thank you