In the adjoining figure, `D E` is parallel to `B C` and `A D=1c m`, `B D=2c m`. What is the ratio of the area of ` A B C` to the area of ` A D E`?

A B C D is a square. E is the mid-point of B C and F is the mid-point of C D . The ratio of the area of triangle A E F to the area of the square A B C D is (a) 1 : 2 (b) 1 : 3 (c) 1 : 4 (d) 3 : 8

In Figure, A B C D is a rectangle in which C D=6c m ,\ A D=8c mdot Find the area of parallelogram C D E F

In Figure, A B C D is a rectangle with sides A B=10 c m\ a n d\ A D=5c mdot Find the area of E F G

In Fig. 4.178, D E B C (FIGURE) If D E=4c m , B C=6c m and Area ( A D E)=16 c m^2 , find the area of A B C . (ii) If D E=4c m , B C=8c m and Area ( A D E)=25 c m^2 , find the area of A B C . (iii) If D E : B C=3:5 . Calculate the ratio of the areas of A D E and the trapezium B C E D .

In Figure, it is given that A B=B C and A D=E C . Prove that A B E~=C B D

Triangles A B C and D E F are similar. If area ( A B C)=36 c m^2 , area ( D E F)=64 c m^2 and D E=6. 2 c m , find A Bdot (ii) If A B=1. 2 c m and D E=1. 4 c m , find the ratio of the areas of A B C and D E F .

D ,\ E ,\ F are the mid-points of the sides B C ,\ C A and A B respectively of a A B C . Determine the ratio of the areas of D E F and A B C .

P is any point on base B C of A B C\ a n d\ D is the mid-point of B CdotD E is drawn parallel to P A to meet A C at Edot If a r\ ( A B C)=12 c m^2 , then find area of E Q C

In Fig. 15.63, A B C D is a trapezium with A B D C and /_B C D=60o . If B F E C is a sector of a circle with centre C and A B=B C=7\ c m and D E=4\ c m , then find the area of the shaded region (U s e\ \ pi=(22)/7\ a n d\ sqrt(3)=1. 732) .

In Fig. 21, A B C D is a parallelogram, D L_|_A Bdot If A B=20\ c m , A D=13\ c m and area of the parallelogram is 100 c m^2 find A Ldot