if ABCD is a parallelogram,AB=9cm,BC=5CM and DE is perpendicular to AB.If the area of the parallelogram is 36 sq. cm,find AE.
ABCD is a parallelogram with AB = 9 cm and BC = 5 cm. DE is perpendicular to AB and area of ABCD = 36 sq. cm
area of parallelogram = base × height
36 = AB × DE
In right triangle ADE,