In the adjacent figure, if `A B=12 c m ,\ \ B C=8c m` and `A C=10 c m` , then `A D=` (FIGURE) (a) 5cm (b) 4cm (c) 6cm (d) 7cm

In Figure, A B C D is a parallelogram. If A B=12\ c m ,\ \ A E=7. 5\ c m ,\ C F=15\ c m , then A D= 3 cm (b) 6 cm (c) 8 cm (d) 10.5 cm

In Fig. 10.97, the sides A B ,\ B C and C A of triangle A B C , touch a circle at P ,\ Q and R respectively. If P A=4c m , B P=3c m and A C=11 c m , then length of B C is (FIGURE) (a) 11cm (b) 10cm (c) 14cm (d) 15cm

In Fig. 10.79, R Q is a tangent to the circle with centre O . If S Q=6c m and Q R=4c m , then O R= (FIGURE) (a) 8cm (b) 3cm (c) 2.5cm (d) 5cm

In the figure, if DF||BC, AD = 3cm, BD = 4cm and BC = 14cm, then DE equals (a) 7cm (b) 6cm (c) 4cm (d) 3cm

In Fig. 10.103, a quadrilateral A B C D is drawn to circumscribe a circle such that its sides A B ,\ B C ,\ C D and A D touch the circle at P ,\ Q ,\ R and S respectively. If A B=x\ c m , B C=7c m , C R=3c m and A S=5c m , then x= (FIGURE) (a) 10 (b) 9 (c) 8 (d) 7

In Fig.10.94, if AB=8cm and PE=3cm then AE=(FIGURE)(a)11cm(b)7cm(c)5cm(d)3cm

A B C P Q R such that a r( A B C)=4a r( P Q R)dot If B C=12 c m , then Q R= (a) 9cm (b) 10cm (c) 6cm (d) 8cm

In Fig.10.90,PR=( FIGURE ) (a) 20cm(b)26cm(c)24cm(d)28cm

In Figure, if A C is bisector fo /_B A D such that A B=3\ c m\ a n d\ A C=5\ c m , then C D= 2\ c m (b) 3\ c m (c) 4\ c m (d) 5\ c m

A B C D is a trapezium in which A B D Cdot If a r( A B D)=24\ c m^2a n d\ A B=8\ c m , then height of A B C is 3 cm (b) 4 cm (c) 6 cm (d) 8 cm