If the ratio of the radius of the base of a right circular cone to its – McqOptions

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1.	If the ratio of the radius of the base of a right circular cone to its slant height is 1∶ 3, what is the ratio of the total surface area to the curved surface area?
A.	5 ∶ 3
B.	3 ∶ 1
C.	4 ∶ 1
D.	4 ∶ 3
Answer» E.

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