Practice!

Sample Problem

Two 1 m wide roads pass through a lawn which is 37 m long and 29 m wide and divides it into 4 equal parts. What is the area of each piece of the lawn?

  m2

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Solution

Twice the length of each piece + one meter of the road width is the length of the lawn. Thus twice the length of each piece = 36, so the length of each piece is 36 ÷ 2 = 18 m. Similarly, twice the width of each piece + one meter of road width = width of the lawn. Thus twice the width of each piece = 28 m, so the width of each piece = 28 ÷ 2 = 14 m. The area of each piece is therefore 18 × 14 = 252m2.