Find the area of the following polygon, if `A L=10 c m ,\ A M=20 c m ,\ A N=50 c m ,\ A O=60 c m\ a n d\ A D=90 c mdot`

In a A B C , D a n d E are points on the sides A B and A C respectively. For each of the following cases show that D E B C : A B=12 c m , A D=8 c m , A E=12 c m a n d A C=18 c m . (ii) A B=5. 6 c m , A D=1. 4 c m , A C=7. 2 c m a n d A E=1. 8 cm

In a A B C ,\ \ D\ a n d\ E are points on the sides A B and A C respectively. For each of the following cases show that D E B C : A B=10. 8 c m ,\ \ B D=4. 5\ c m ,\ \ A C=4. 8 c m\ a n d\ A E=2. 8 c m (ii) A D=5. 7 c m ,\ \ B D=9. 5 c m ,\ \ A E=3. 3 c m\ a n d\ E C=5. 5 c m .

In Fig. 4.60, check whether A D is the bisector of /_A of A B C in each of the following: (FIGURE) A B=5c m , A C=10 c m , B D=1. 5 c m and C D=3. 5 c m (ii) A B=4c m , A C=6c m , B D=1. 6 c m and C D=2. 4 c m (iii) A B=8c m , A C=24 c m , B D=6c m and B C=24 c m

Which of the following pairs of triangles are congruent? If they are congruent, write out the pairs of equal angles. A B C : A B=3c m , B C=4c m , C A=2 c m D E F : D E=2 c m , E F=3 c m a n d F D=4 c m P Q R : P Q=17 c m , Q R=15 c m , P R=18 c m D E F : D E=18 c m , E F=17 c m , D F=15 c m .

In Fig. 4.60, check whether A D is the bisector of /_A of A B C in each of the following: (FIGURE) A B=6c m , A C=8c m , B D=1. 5 c m and C D=2c m (ii) A B=5c m , A C=12 c m , B D=2. 5 c m and B C=9c m

The dimensions of the field shown in the given figure are A C=150 m , A H=120 m , (b) A G=80 m , A F=50 m , (c) E F=30 m , G B=50 m , (d) H D=20 c m The area of this field is (a) 6500 m2 (b) 6550 m2 (c) 6600 m2 (d) 6650 m2

In fig. 15 A B C D is a parallelogram C M_|_A B and B L_|_A Ddot If \ A B=16\ c m ,\ A D=12\ c m , C M=10\ c m ,\ find \ B L\ If \ A D=10 c m ,\ C M=8c m ,\ B L=12\ c m ,\ find A B .

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 Fig. 21, if A B=35\ c m , A D=20\ c m and area of the parallelogram is 560 c m^2 find L Bdot

If A B C and DEF are two triangles such that A B C ~= F D E a n d A B=5c m , /_B=40^0 a n d /_A=80^0dot Then, which of the following is true? D F=5c m , /_F=60^0 (b) D E=5c m , /_E=60^0 D F=5 c m , /_E=60^0 (d) D E=5c m , /_D=40^0