Question

The earth has a diameter of 7917.5 mi. What is the arc length of half the earth?

Answer 1

Answer:

Arc length is 12436.8m

Step-by-step explanation:

arc length  = $\frac{M degree}{360degree}$ * πD

where M is the angle measure of the arc

and D is the diameter

considering the earth as a circle and half the earth as a semi circle the angle measure of the arc will be = 180 degrees

$\frac{180}{360}$ * π * 7917.5 = 12436.8m