Which of the following pairs of triangle are congruent? ` A B C : A B=10\ c m ,\ /_A=40^0,\ /_B=55^0; X Y Z : X Y=10,/_Y=40^0,\ /_Z=85^0` ` P Q R : P R=5\ c m ,\ /_P=37^0,\ /_R=64^0;\ D E F : D E=5\ c m ,\ /_D=37^0,\ /_F=64^0`

Which of the following pairs of triangles are congruent? A B C : A B=2\ c m ,\ A C=4\ c m ,\ /_A=40^0; X Y Z : X Z=Y Z=4,/_Z=40^0 P Q R : P Q=5\ c m ,\ P R=6\ c m ,\ /_P=55^0;\ D E F : D E=6\ c m ,\ E F=5\ c m ,\ /_D=55^0

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 .

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

In a rhombus A B C D , if /_A C B=40^0, then /_A D B= (a) 70^0 (b) 45^0 (c) 50^0 (d) 60^0

In Figure, if A B||C D , /_A P Q=50^0A N D /_P R D=127^0, find x a n d y

In a parallelogram A B C D , if /_A=(3x-20)^0,\ /_B\ (y+15)^0,\ /_C=(x+40)^0, then find the values of x\ a n d\ y

In Fig.102, A B C D E F ,\ /_A B G=110^0,/_G C D=100^0 and /_B G C=x^0dot the value of x is (a) 35 (b) 50 (c) 30 (d) 40

In fig. 15 , D , E are points on sides AB, AC of A B C such that D E||B Cdot if /_B=30^0 a n d /_A=40^0, find x^0, y^0, z^0dot

A B C D is a cyclic quadrilateral in which: B C A D ,\ /_A D C=110^0\ a n d\ /_B A C=50^0dot Find /_D A C /_D B C=80^0\ a n d\ /_B A C=40^0dot Find /_B C D /_B C D=100^0a n d\ /_A B D=70^0 find /_A D B

Out of the following one which is correct for equilibrium state ? (a) Delta G=0 (b) Delta S=0 (c ) r_(f)=r_(b) (d) E_(cell)=0