MENU
Question -

The radius of a circle is increasing at the rate of 0.7 cm/sec. What is the rate of increase of its circumference?



Answer -

Given the radius of a circle is increasing at the rate of 0.7 cm/sec.
To find rate of increase of its circumference
Let the radius of the given circle be r cm at any instant time.
Then according to the given question, we can write as

Hence the rate of increase of the circle’s circumference will be1.4 π cm/sec

Comment(S)

Show all Coment

Leave a Comment

Free - Previous Years Question Papers
Any questions? Ask us!
NodeJS Interview Questions Answers
ASP.Net Interview Questions Answers
Interview Questions Answers
×