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Problem 7 - Entrance Test

A rectangle has perimeter 36 cm. If the length is 2 cm more than the width, what is the area (in cm²)?

Correct: D

Let width = x, length = x + 2. 2(x + x + 2) = 36 → 4x + 4 = 36 → x = 8. Area = 8·10 = 80 cm².