In Q. No. 1, if `P B=10 c m` , what is the perimeter of ` P C D` ?

From an external point P , tangents P A and P B drawn to a circle with centre O . If C D is the tangent to the circle at a point E and P A=14 c m , find the perimeter of P C D .

If A B ,\ A C ,\ P Q are tangents in Fig. 10.51 and A B=5c m , find the perimeter of A P Q . (FIGURE)

In Fig. 10.72, P A and P B are tangents to the circle drawn from an external point P . C D is a third tangent touching the circle at Q . If P B=10 c m and C Q=2c m , what is the length P C ? (FIGURE)

A B C is a triangle and through A ,\ B ,\ C lines are drawn parallel to B C ,\ C A\ a n d\ A B respectively intersecting at P ,\ Q\ a n d\ R . Prove that the perimeter of P Q R is double the perimeter of A B C

A B C is a triangle and through A ,\ B ,\ C lines are drawn parallel to B C ,\ C A\ a n d\ A B respectively intersecting at P ,\ Q\ a n d\ R . Prove that the perimeter of P Q R is double the perimeter of A B C

In a triangle, P ,\ Q\ a n d\ R are the mid-points of sides B C ,\ C A\ a n d\ A B respectively. If A C=21\ c m ,\ B C=29 c m\ a n d\ A B=30 c m , find the perimeter of the quadrilateral A R P Q

In a triangle, P ,\ Q\ a n d\ R are the mid-points of sides B C ,\ C A\ a n d\ A B respectively. If A C=21\ c m ,\ B C=29 c m\ a n d\ A B=30 c m , find the perimeter of the quadrilateral A R P Q

A B C D is a parallelogram. P is the mid-point of A BdotB D\ a n d\ C P intersect at Q such that C Q : Q P=3: 1. If a r\ ( P B Q)=10\ c m^2, find the area of parallelogram A B C D

A B C D is a parallelogram. P is the mid-point of A BdotB D\ a n d\ C P intersect at Q such that C Q : Q P=3: 1. If a r\ ( P B Q)=10\ c m^2, find the area of parallelogram A B C D

The average of a, b, c, and d is p. If the average of a and c is q, what is the average of b and d in terms of p and q?