Question

ExamOn a map, the scale shown is1 inch : 20 miles. If a city is900 square miles, what is thearea of the city on the map?The city's area issquare inches on the map.(DO NOT round your answer.)

Answer 1

First, let's find each length of the city

To do that, find the square root of 900

l² = 900

l= 30 miles

The length of the city is 30 miles

We need to find the length on map

1 inch = 20 miles

x = 30 miles

20 x = 30

x=1.5 miles

The length is 1.5 miles on map

Hence the area on map is ;

Area = l² = 1.5² = 2.25

Hence the city area is 2.25 square inches