Find the distance between the cities. Assume that Earth is a sphere of radius 4000 miles and that the cities are on the same longitude

Question

Find the distance between the cities. Assume that Earth is a sphere of radius 4000 miles and that the cities are on the same longitude (one city is due north of the other). (Use the formula for arc length. Round your answer to the nearest mile.)

City	Latitude
Dallas, Texas	32° 47' 9'' N
Omaha, Nebraska	41° 15' 50'' N

_____mi

Answer 1

Subtract latitudes to determine central angle

Use formula Arc = 2πr(θ/360)