alleryA 10 cm square has the same perimeter as a rectangle 12 cm long. Its width?
A6 cm
B10 cm
C8 cm
D28 cm
Answer & Solution
Correct answer: C. 8 cm
1. Square perimeter = 4 × 10 = 40 cm.
2. Rectangle: 2 × (12 + w) = 40, so 12 + w = 20.
3. The width is 8 cm.
_Source: Wikipedia, Perimeter (CC BY-SA 4.0, rev 1322108581), Perimeter_
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