Question

If ABCD is a trapezium. AB||DC. Points M and N are midpoints of diagonal AC & DB respectively then prove that MN=1/2(AB-DC).

Answer 1

Step-by-step explanation:

in llgm abmn

mn= 1/2 ab ------- (1)

now ... in llgm mncd

mn = 1/2 CD-------- (2)

by 1 and 2

mn = 1/2 (ab- cd)