If a circle of radius r is inscribed in a triangl ABC. Express r in terms of a,b and c only


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Question Number 202001 by necx122 last updated on 18/Dec/23

$I f a c i r c l e o f r a d i u s r i s i n s c r i b e d i n$ $a t r i a n g l A B C . E x p r e s s r i n t e r m s o f$ $a, b a n d c o n l y$
	Answered by deleteduser1 last updated on 18/Dec/23

	$r = \frac{\sqrt{s (s - a) (s - b) (s - c)}}{s} w h e r e s = \frac{a + b + c}{2}$
	Commented by necx122 last updated on 18/Dec/23
	Thank you. Sir, I'm interested in the proof. If I can get that I'll be more grateful.
	Commented by deleteduser1 last updated on 18/Dec/23

	$r s = a r e a o f t h e t r i a n g l e = \sqrt{s (s - a) (s - b) (s - c)}$
	Commented by necx122 last updated on 18/Dec/23
	Thanks
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