25. In figure, the sides AB, BC and CA of triangle ABC touch a circle with centre and radius `r` at P, Q and R respectively. Prove that (i ) `AB+CQ=AC+BQ` (ii) Area `Delta ABC=1/2` perimeter of `DeltaABC) .r`.

The sides AB,BC and AC of a triangle ABC touch a circle with centre O and radius r at P Q,and R respectively.

In the figure, the sides AB, BC and CA of triangle ABC touch a circle with centre O and radius r at P, Q , and R respectively. Prove that (i) AB+CQ=AC+BQ (ii) Area (DeltaABC)=1/2 ("Perimeter of" DeltaABC)xx r

In the given figure the sides AB, BE and CA of triangle ABC touch a circle with centre O and radius r at P,Q and R respectively. Prove that : (i) AB+CQ=AC+BQ

In the given figure the sides AB, BE and CA of triangle ABC touch a circle with centre O and radius r at P,Q and R respectively. Prove that : (i) AB+CQ=AC+BQ (ii) Area (triangleABC)=(1)/(2)("Perimeter of"triangleABC)xxr

In Fig. 10.20, the sides A B ,\ B C and C A of triangle A B C touch a circle with centre O and radius r at P ,\ Q and R respectively. (FIGURE) Prove that: 1) AB + CQ = AC + BQ 2) Area (ABC) = (r/2)*(Perimeter of ABC)

In Fig. 10.20, the sides A B ,\ B C and C A of triangle A B C touch a circle with centre O and radius r at P ,\ Q and R respectively. (FIGURE) Prove that: 1) AB + CQ = AC + BQ

The side AB, BC and CA of triangle ABC touch a circle at P,Q and R respectively. If PA =4 cm, BP=3 cm and AC=11 cm, then length of BC is

A circle touches the side BC of DeltaABC at P and touches AB and AC produced at Q and R respectively. Prove that AQ=1/2(Perimeter of DeltaABC).