What is incircle of a traingle?

What is incircle of a triangle?

Draw a triangle whose one of the side is 7.2 cm and adjacent angles of this side are 50^@ and 70^@ . Now draw the incircle of this traingle.

The sides of a triangle are 7 cm, 15 cm and 18 cm respectively. What is the radius of the incircle of the triangle?

ABCDEF is a regular hexagon of side 12 cm. What is the area of traingle BDF?

If a DeltaABC is right angled at B, then the diameter of the incircle of the triangle is

If a triangle is right angled at B, then the diameter of the incircle of the triangle, is

If a triangle is right angled at B, then the diameter of the incircle of the triangle, is

If a DeltaABC is right angled at B, then the diameter of the incircle of the triangle is