If ` A B C` and `D E F` are two triangles such that `(A B)/(D E)=(B C)/(E F)=(C A)/(F D)=3/4` , then write Area `( A B C): A r e a( D E F)` .

If A B C and D E F are two triangles such that (A B)/(D E)=(B C)/(E F)=(C A)/(F D)=2/5 , then A r e a( A B C): A r e a( D E F)=

If A B C and D E F are similar triangles such that 2\ A B=D E and B C=8c m , then E F=

If in two triangles A B C and D E F , (A B)/(D E)=(B C)/(F E)=(C A)/(F D) , then F D E C A B (b) F D E A B C (c) C B A F D E (d) B C A F D E

If /_\A B C and /_\D E F are similar triangles such that A B=3c m , B C=2c m C A=2. 5 c m and E F=4c m , find the perimeter of D E F .

In Figure A B C D\ a n d\ A E F D are two parallelograms. Prove that: P E=F Q

In Figure, D E || A C and D F || A E . Prove that (E F)/(B F)=(E C)/(B E) .

If A B C\ a n d\ D E F are two triangles such that A B ,\ B C are respectively equal and parallel to D E ,\ E F . Then show that (i) Quadrilateral A B E D is a parallelogram (ii) Quadrilateral B C F E is a parallelogram (iii) A C=D F (iv) A B C\ ~=\ D E F

In Figure, A B C\ a n d\ B D E are two equilateral triangls such that D is the mid-point of B C. If A E intersects B C in F , Prove that: a r( B D E)=1/4a r\ (\ A B C) .

In Fig. if E F|| D C|| A Bdot Prove that (A E)/(E D)=(B F)/(F C) . (FIGURE)

In Fig. if E F|| D C|| A Bdot Prove that (A E)/(E D)=(B F)/(F C) . (FIGURE)