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Example Questions
Example Question #26 : How To Find Surface Area
A sphere has diameter 12. What is 75% of its surface area?
Possible Answers:
Correct answer:
Explanation:
The radius of a sphere is half its diameter, which here is 12, so the radius is 6. The surface area of the sphere can be calculated by setting in the formula:
75% of this is
Example Question #27 : How To Find Surface Area
Which expression is equal to 40% of the surface area of the above cylinder?
Possible Answers:
Correct answer:
Explanation:
The surface area of the cylinder can be calculated by setting and in the formula
40% of this surface area is
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