Civil Service Exam Reviewer · Measurement and Geometry · hard
The diagonal of a square is 28 cm. What is its area?
- 784 cm²
- 392 cm²
- 196 cm²
- 392.12 cm²
Answer
B. 392 cm²
Solution
For a square, A = d²/2 = 28²/2 = 392 cm².
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