A rock is thrown in a pond, and creates circular ripples whose radius increases at a rate of 0.2 meter per second. What will be the value of
A
π
π
A
, where
A
A is the area (in square meter) of the circle after 5 seconds?
Hint: The area of a circle =
π
r
2
πr
2
, where
r
r is the radius of the circle.
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.