Railway Recruitment Board Mathematics — Question 1725
Question
The area of a square is 144 cm². What is its perimeter?
- 36 cm
- 48 cm
- 24 cm
- 144 cm
Correct answer
B — 48 cm
Explanation (English)
Side = √144 = 12 cm. Perimeter = 4 × side = 4 × 12 = 48 cm.
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