1.

A cone , a hemisphereand a cylinderstand on equal bases of radius R and have equal heights H . Their whole surfaces are in the ratio :

Answer»

a)`(sqrt(3) +1): 3:4`
B)`(sqrt(2) + 1) : 7 : 8 `
C)`(sqrt(2) + 1) : 3: 4`
d)none of these

ANSWER :C


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