[" (13) "ABCD" is a trapezium and "M,N" are mid points "],[" of the diagonals "AC" and "BD." Then,"MN" is "]

In a trapezium ABCD, if E and F be the mid points of the diagonals AC and BD respectively, then EF=

ABCD is a trapezium in which AB abs CD and AD = BC. Show that diagonal AC = diagonal BD

ABCD is a regular tetrahedron.M and N are the mid points of the edges AB and CD It the length of AB is a,then |bar(MN)|^(2)=

If the parallel sides of a trapezium are 8 cm and 4 cm, M and N are the mid points of the diagonals of the trapezium, then length of MN is

M and N are points on opposite sides AD and BC of a parallelogram ABCD such that MN passes through the point of intersection O of its diagoinals AC and BD. Show that MN is bisected at O.

if ABCD is a trapezium,AC and BD are the diagonals intersecting each other at point Q. then AC:BD=

ABCD is a trapezium in which AB||CD and AD = BC (See Fig.) Show that diagonal AC = diagonal BD.

ABCD is a trapezium in which AB||CD and AD = BC (See Fig.) Show that diagonal AC = diagonal BD.