In the following figure X, Y and Z are the points at which the incircle touches the sides of the triangle. If PX= 4 cm, QZ = 7cm and YR = 9 cm, then the perimeter of triangle PQR is

In the following figure, X,Y and Z are the points at which the incircle touches the sides of the triangle. If PX=4cm,QZ=7 cm and YR=9 cm , then the perimeter of triangle PQR is

In the figure, sides of triangle ABC are tangents to the circle touching the circle at points P, Q abd R as shown. If AQ=3 cm, BR=7 cm and PC= 4 c m, then perimeter of triangle ABC is

The length of three sides of a triangle are (x+4)cm, (2x+1)cm, and (4x-8)cm, find the perimeter of the triangle.

The length of three sides of a triangle are (x +4) cm. (2x+1) cm. and (x-8) cm. Let's find the perimeter of the triangle.

If the differences of each of the sides of a triangle from its half-perimeter be 8cm, 7 cm, and 5 cm, then the area of the triangle is

Two sides of a triangle are 8 cm and 11 cm and its perimeter is 32 cm. Semi perimeter of the triangle is :

The lengths of two sides of an isosceles triangle are 9 cm and 20 cm. What is the perimeter of the triangle? Give reason.