Question

Find the circumference of the circle whose area is equal to the sum of the areas of the three
circles with radii 2 cm, 3 cm and 6 cm.
​

Answer 1

Given:

Radius of the 3 circles = 2cm, 3cm, 6cm

To Find:

Circumference of the circle.

Solution:

a=π×(r1²+r2²+r3²)

a=22/7×(4+9+36)

a=22/7×49

a=22×7

a=154

22/7×r²=154

r²=(154×7)22

r²=49

r=7

c=22/7×7×2

c=44

$\LARGE{ \pink{ \bf{c=44 \: Ans}}}$