Question

if the radius of a circle is tripled,it's perimeter will become how many times of its previous perimeter.​

Answer 1

Step-by-step explanation:

3 times.. as circumference is directly proportional to r

Answer 2

Answer:

3 Times.

Step-by-step explanation:

Suppose we have a circle of radius r. Now when the radius of circle gets tripled i.e the radius of the circle will be 3r. Therefore the circumference will become 3 times when the radius of the circle gets tripled. Therefore the area of circle will become 9 times when the radius of the circle gets tripled.