A triangle has sides with lengths of 3, 5, and 2. What is the radius of the triangles inscribed circle?

1 Answer
Konstantinos Michailidis
Jan 23, 2016

The radius of the inscribed circle is represented by 'r', which is given by #Delta/s#, where #Delta# = area of the triangle ,and s= #(a+b+c)/2# , with a, b ,c being the sides.

Also the area = #sqrt (s(s-a)(s-b)(s-c))# by Heron formula

Now you have only to replace the values of the sides to get the radius

Related questions
See all questions in Area of Inscribed Triangle
Impact of this question
1354 views around the world
You can reuse this answer
Creative Commons License