Question

if radius of circle whose circumference is equal to sum of circumference of 2 circles of radius 6 nd 9 cm​

Answer 1

Answer:

☞Given:

The radii of two circles are r 1 =15 cm & r 2=18 cm.

To find out:

The radius r of the circle whose circumference C=C

1 +C2

Solution:

We have C 1=2πr1 & C2=2πr 2

∴ The resulting circumference C=2πr=C

1 +C 2=2π(r 1+r 2 ) =2π(15+18) cm=66π cm.

∴ We have, 2πr=66π⇒r= 266cm=33 cm

Step-by-step explanation:

I hope it helps u ☺️❣❣✌️.........