alleryA 10 cm square wire frame becomes a 14 cm long rectangle; its area?
A140 cm²
B84 cm²
C100 cm²
D60 cm²
Answer & Solution
Correct answer: B. 84 cm²
The 40 cm wire gives a breadth of 40 ÷ 2 − 14 = 6 cm and area 14 × 6 = 84 cm².
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