Civil Service Exam Reviewer · Measurement and Geometry · hard
A window is shaped like a 9 dm × 13 dm rectangle topped by a semicircle whose diameter is the 13-dm side. What is the window's total area? (π = 3.14)
- 183.33 dm²
- 249.67 dm²
- 382.33 dm²
- 117 dm²
Answer
A. 183.33 dm²
Solution
Rectangle = 117; semicircle = ½ × 3.14 × 6.5² = 66.33. Total = 183.33 dm².
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