Question

in a adjoining figure, ABCD is a parallelogram. DE perpendicular AB. IF AB = 20cm,AD=13cm and the parallelogram is 100cmsquare calculate the AE.​

Answer 1

Answer:

Ar=b*h

20*DE=100 cm2

DE=5cm

Answer 2

AB=20cm

AB =CD (opposite sides of the parallel)

CD=20cm

ar(parallel ABCD)= Base ×height

80=20×AE

AE=4cm