Question

Three circles of radius a b c touch each other externally. The area of a triangle formed by joining their centre is

Answer 1

let the three radius be r1,r2
and r3
r1=a
r2=b
r3=c
Now,
find the area of quator
of all circles
and then add all of them
that Is only the answer

Answer 2

Answer:

$\sqrt{abc(a + b + c) }$

Hope this helps...