Engineering Board Exam Reviewer · Solid Geometry: Cones, Spheres, and Frustums · medium
A plane cuts a sphere of radius 5 at a distance of 3 from the center. Find the area of the circle of intersection.
- 25 π 78.54
- 9 π 28.27
- 16 π 50.27
- 4 π 12.57
Answer
C. 16 π 50.27
Solution
The circle's radius is sqrt(52-32)=4, so its area is 16π 50.27.
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