The circumference of the circle is increasing at a rate of 0.5 meters per minute. What's the rate of change of the area of the circle when the radius is 4 meters?

1: 3 meters per minute
2: 4 meters squared per minute
3: 4 meters per minute
4: 2 meters squared per minute
5: 7 meters per minute

This is actually for a game but I'm really bad at math.

Mathematics
Views: 0 Asked: 02-11 17:23:17
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