Math, asked by babu1621, 7 months ago

Find the rate of change of the area of a circle with respect to its radius (r) when
a) r=3cm
b) r=4cm

Answers

Answered by kalebuck11

0

Answer:

hi

Step-by-step explanation:

bye

Answered by 123456789ql

1

Answer:

50.28-28.28 =22

Step-by-step explanation:

a) r=3cm

22/7 ×3 ×3

=198/7

=28.28

b)r=4cm

22/7 ×4 ×4

=352/7

=50. 28

Please please mark it as the brainliest

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