The radius, $r$ cm, of a hemisphere is increasing at a constant rate of $1.2$ cm/s. Find the rat

Question

The radius, $r$ cm, of a hemisphere is increasing at a constant rate of $1.2$ cm/s. Find the rate of increase of the surface area of the hemisphere when $r=5$.

Accepted Answer

$36\pi\text{ cm}^2\text{ s}^{-1}$

Differentiation

Differentiation

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