alleryA rectangle has perimeter 36 m, and its length is twice its width. What is the width?
A18 m
B9 m
C12 m
D6 m
Answer & Solution
Correct answer: D. 6 m
1. Perimeter = 2 × (length + width) = 36, so length + width = 18.
2. Length is 2 × width, so 3 × width = 18.
3. Width = 6 m and length = 12 m.
_Source: Wikipedia, Perimeter (CC BY-SA 4.0, rev 1322108581), Perimeter_
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