Question

23. In A ABC, AB = 20 cm, BC = 21 cm and AC = 29 cm. Find the radius of the circle
touching all the sides of A ABC.
30 students of a class : 2-14​

Answer 1

Step-by-step explanation:

We know that the radius of the circle touching all the sides is (AB + BC – AC )/ 2

so,

(20+21-29)/2= 12/2= 6 cm ans