Math, asked by Hitikadhiman7187, 8 months ago

The rate of change of the area of the circle with respect to its radius r at r= 5 cm is: *

Answers

Answered by ayush2005301

0

Answer:

Area of circle =πr

2

A=πr

2

differentiating with respect to r we get

dr

dA

=2πr(

dr

dr

)

dr

dA

=2πr

dr

dA

=2×5×π

dr

dA

=10π

cm

cm

2

This is rate of change of area of circle with respect to radius 5cm

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