Question

would like to tell you a important formula

if a circle is inscribed in a triangle/
in easy words if there is a circle inside a triangle then the radius is equal to



$radius = \frac{ area \: of \: triangle}{semi \: perimeter \: of \: triangle}$

thank you hope this might help you.

Answer 1

does it mean,
radius= area of traingle/semi-perimeter of triangle.
?

Answer 2

Thanks a lot!
It is very helpful.