alleryA triangle has three sides of 7 cm each. What is its perimeter?
A28 cm
B21 cm
C14 cm
D49 cm
Answer & Solution
Correct answer: B. 21 cm
1. Perimeter is the sum of the sides.
2. 7 + 7 + 7 = 21.
3. 49 is 7 × 7.
_Source: Wikipedia, Perimeter (CC BY-SA 4.0, rev 1322108581), Perimeter_
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