In triangle ABC, AB = 20 cm, BC = 16 cm and AC = 12 cm and the radius of circle inscribed in it is 4 cm. Find the area of triangle ABC.

48 cm2 72 cm2 96 cm2 120 cm2

96 cm2

We have a concept = Area of triangle = Semi perimeter of triangle × radius of incircle We have given that, AB = 20 cm BC = 16 cm AC = 12 cm Radius of incircle = 4 cm Area of triangle = \(\frac{20 + 16 + 12}{2}\) × 4 = 96 cm2