Question

if circumference of a circle increased 3times then how many times it's area will increase​

Answer 1

Step-by-step explanation:

circumference of a circle is 2πr

if it is increased by 3 times = 6πr

6πr=2π*(3r)

r becomes 3r

so new area = π*(3r*3r)=9π(r^2)

old area= π(r^2)

so increased area by 9 times

Please mark as brainiest