Question: If a snowball melts so that its surface area decreases at a rate of 1 cm/min, find the rate at which the diameter decreases when

If a snowball melts so that its surface area decreases at a rate of 1 cm/min, find the rate at which the diameter decreases when the diameter is 10 cm.

(a) What quantities are given in the problem?
(b) What is the unknown?
(c) Draw a picture of the situation for any time t.
(d) Write an equation that relates the quantities.
(e) Finish solving the problem.

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