If the perimeter of a square is 36 units; what is its area?
- A. 81 square units ✓
- B. 36 square units
- C. 72 square units
- D. 144 square units
Correct answer
A. 81 square units
Explanation
Perimeter = 4 × side; so side = 36 ÷ 4 = 9. Area = side² = 9² = 81 square units.
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