Question

A(6,1), b(8,2) and c(9,4) are three vertices of a parallelogram abcd. If e is the mid point of dc, find the area of ade

Answer 1

x cordinate of d: 6+9-8 = 7
y cordinate of d : 1+4-2 = 3

by midpoint formula : e (8,3.5)

now find area of triangle ade