Engineering Board Exam Reviewer · Areas of Plane Figures · medium
Four quarter-circles of radius 6 are drawn inside a square of side 12, each centered at a corner. Find the area of the square not covered by the quarter-circles.
- 113.1
- 72
- 30.9
- 15.45
Answer
C. 30.9
Solution
The four quarter-circles together make one full circle, π(6)2=113.10. Uncovered area =144-113.10=30.90.
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