ABCD is a trapezium in which AB||DC. M and N are the mid-points of AD and BC respectively, If AB=12cm, MN=14 cm, then CD=
Given,
ABCD is a trapezium
AB││DC
M , N are mid points of AD & BC
AB = 12cm , MN = 14 cm
∵ AB││MN││CD [ M, N are mid points of AD &BC]
MP = NP
By mid point theorem,
MP = 
∴MN = 
= 14 = 
29