Question

A certain city covers an area of 37.8 mi2. How many square kilometers is this? Use the conversion factor 1 mile = 1.61 km. Round to one decimal place.

Answer 1

Answer: 98.0 square kilometers

Explanation:

We want 37.8 sq. miles converted to square kilometers. In order to do this, we need to know how many square miles are in a square kilometer.

1 mile * 1 mile = 1.61 km * 1.61 km because 1 mile = 1.61 km

1 square mile = 2.5921 square kilometer

Use Dimensional Analysis:

37.8 sq. m * (2.5921 sq. km / 1 sq. m) = 97.98138 square kilometers.

Next round this answer. ... 98.0 sq. km.

from MysticAlanCheng