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$29.[0/1$ Points$]$

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SCroly $28$at$4.$

If a snowball melts so that its surface area decreases at a rate of $5c\frac{m^2}{m}in,$ find the rate $($ inc$\frac{m}{m}in)$ at which the diameter decreases when the diameter is $12$ cm $.($Round your answer to free decimal places.$)$

$c\frac{m}{m}in$

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Nease try apain. Keep in mind that the surface area of a snowball $($sphere$)$ with radius $r$ is $A=4r^2.$ Differentiate this equation with respect to time, $t,$ using the Chain Rule, to find the equation for the rate at which the area is decreasing, $\frac{dA}{dt}$ Then, use the values from the exercise to evaluate the rate of change of the radius of the sphere. Have in mind that the diameter is twice the radius.