An experimental aircraft has a plexiglass covering over the cockpit that is hemispherical. If the radius of the hemisphere is 2 ft, what is the surface area?
?
A. 17.3 ft 2
B. 35.3 ft 2
C. 40.4 ft 2
D. 25.1 ft 2
E. 50.3 ft 2
Answer: D
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A. 
B. 
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D. 
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A. 
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B. 
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C. 
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D. 
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, 0 ? z ? 2; G(x, y, z) = z - y
A. 
B. 
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C. 
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D. 
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