If the total surface of a hemisphere is 7392 square cm, then find its radius.

Aakash Shah

3 years ago

1 Answer

Aakash Shah

3 years ago

Given, Total surface area of a hemisphere (TSA) = 7392cm²

By formula,

Total surface area of a hemisphere (TSA) = ²

or,7392cm² = \(3\times\frac{22}7\times r^2\)

or, \(\frac{7\times7392cm^2}{66}=r^2\)

or, r² = 784cm²

or, r² = (28cm)²

or, r = 28cm

Therefore the radius of the hemisphere (R) = 28cm.

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