Class10 | Imp | CBSE board exams | Circle touches BC of ΔABC at P and extended sides AB , AC at Q

In this video we will learn the solutions of the given below Questions.

1.In the figure,CP and CQ are tangents to a circle with centre O. ARB is another tangent touching the circle at R. IfCP=11cm,BC=7cm, then the length BR is : (CBSE2009)

2.In the given figure, PA and PB are tangents to the circle from an external point P. CD is another tangent touching the circle at Q. If PA = 12 cm, QC = QD = 3 cm, then find PC + PD. (CBSE2017)

3.If AP, AQ, BC are tangents in the figure and AB = 5 cm, AC = 6cm and BC = 4cm find the length of AP

4.In the figure, a circle touches the side DF of  Δ EDF at H and touches ED and EF produced at K and M respectively. If EK=9 cm, then the perimeter of Δ EDF (in cm) is: (CBSE2012)

5.If a circle touches the side BC of a triangle ABC at P and extended sides AB and AC at Q and R, respectively, prove that AQ = 1/2 (BC + CA + AB).