Question

if the curved surface area of a hemisphere is 308 cm square find its radius​

Answer 1

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Answer 2

Answer:

The radius of the hemisphere is 7 cm.

Step-by-step explanation:

Curved surface area of the hemisphere is 308 cm square .

Curved surface area of hemisphere = 2$\pi$$r^{2}$.

where r is the radius of the hemisphere .

2$\pi r^{2}$ = 308

or, $r^{2}$ = 308 * ( 7 / 22) * ( 1 / 2 ) .

or, $r^{2}$ = $7^{2}$ .

or, r = 7 .

So, the radius of the hemisphere is 7 cm.

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