Volumes Practice Test 2

Question : 13 of 40

Marks: +1, -0

A hemisphere and a cone have equal bases. If their heights are equal, then find the ratio of their curved surfaces.

Solution:

Here,

{2πr^2}/{πrl}

{2πr^2}/{πr√{r^2+r^2}}

{2r}/{√2r}

√2/1

Hence, ratio of their curved surface areas =

√2

: 1

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