Question

find the area of quadrilateral whose one diagonal is 20 cm long and the perpendicular to this diagonal from other vertices are length 9 cm and 15 cm

Answer 1

Area of quadrilateral
= 1/2 x d x (h1 + h2)
= 1/2 x 20 x ( 9 + 15 )
= 1/2 x 20 x 24
= 10 x 24
= 240.

Here D = diagonal
and h1 and h2 = perpendiculars.