A building is in the form of a cylinder surmounted by a hemispherical – McqOptions

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1.	A building is in the form of a cylinder surmounted by a hemispherical dome on the diameter of the cylinder. The height of the building is three times the radius of the base of the cylinder. The building contains \(67\frac{1}{{21}}\;\)m3 of air. What is the height of the building?
A.	6 m
B.	4 m
C.	3 m
D.	2 m
Answer» B. 4 m

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