Solve.The following diagram shows a cone and its inscribed hemisphere, where the radius of the hemisphere is r and the height of the cone is h. 
Use the formulas to find the ratio of the surface area of the hemisphere to the surface area of the cone.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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3
A. 
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C. 
D. 
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- 
= 
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