Question

please solve this question quickly with steps. question number 4​

Answer 1

Given that,

Area of a big circle = Area of circle 1 + Area of circle 2 + Area of circle 3
Let the radius of the big circle be r

So,
πr^2 = π(24)^2 + π(32)^2 + π(96)^2

r^2 = 24^2 + 32^2 + 96^2
r = √ 11088
So
r is approximately equal to 105 cm

So,
Circumference = 2πr = 2*22/7*105
= 660 cm