Civil Service Exam Reviewer · Measurement and Geometry · hard
The diagonal of a square is 20 cm. What is its area?
- 400 cm²
- 200 cm²
- 100 cm²
- 200.06 cm²
Answer
B. 200 cm²
Solution
For a square, A = d²/2 = 20²/2 = 200 cm².
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