In the adjacent figure, and a:b:c:d =  2:3:4:6, then find a, b, c, d.

In adjacent figure, /_B lt /_A and /_C lt/_D . Show that AD lt BC .

In the adjacent figure ABCD is a parallelogram angle A=50^@ and angle c=?

If in the figure a |\| b and c |\| d , then name the angles that are congruent to : angle2 .

AB and CD are respectively the smallest and longest sides of aquadrilateral ABCD (see adjacent figure). Show that /_A > /_C and /_ B > /_ D.

If 1,2,3 and 4 are the roots of x^4+ax^3+bx^2+cx+d=0 , then find the values of a,b,c and d.

In the adjacent figure Angle c=_______Angle a=_______Angle b=_______Angle d=_______Angle e=_______Angle g=_______Angle f=_______

Find the values of a, b, c and d from the following equation: [(2a+b,a-2b),(5c-d,4c+3d)]=[(4,-3),(11,24)]