Question

what is the area of a parallelogram whose length is 30 cm, width 20 cm and one diagonal is 40 cm.

Answer 1

let ABCD be the given parallelogram
area of parallelogram ABCD = 2 x (area of triangle ABC)
now a = 30m, b = 14m and c = 40m

Area of triangle ABC  = 168 sq m
area of parallelogram ABCD = 2 x 168
                                               = 336 sq m

Answer 2

336 square metre is the answer
mark it as the brainliest plzzz