Question

ABC is a right angled triangle with andleB = 90°, BC =3cm and AB=4cm. A circle with centre
and radius r сm has been inscribed in triangle ABC. Find the radius of the incircle.​

Answer 1

Answer:

(the area of △ABC)= 1/2×r×(the triangle’s perimeter).

Step-by-step explanation:

1/2*3*4=1/2*r*(4+3+5)

6=1/2*12*r

r=1cm