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OpenStudy (anonymous):
The radius r and height h of a circular cone are increasing at a rate of 2 cm/min and 3 cm/min, respectively. How fast is the surface area of this cone changing when r = 4cm and h = 3cm?
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OpenStudy (anonymous):
u know the formula for surface area of a cone?
OpenStudy (anonymous):
|dw:1350372111236:dw|
OpenStudy (anonymous):
area of cone= pi r l (excluding base area)
OpenStudy (anonymous):
fine?
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