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The figure shows a labelled rectangle with length L and width W.  If L = 8 cm and W = 5 cm, the perimeter of the rectangle is:
A13 cm
B26 cm
C40 cm
D45 cm
Answer & Solution
Correct answer: B. 26 cm
Perimeter of a rectangle = 2(L + W) = 2(8 + 5) = 2 × 13 = 26 cm. (Note: area would be L × W = 40 cm² — option C is a common mistake.) Figure: Wikimedia Commons, CC BY-SA — watermark-free educational image.
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