Question

calculate the area of parallelogram whose adjacent side are 20cm, 37cm and diagonal is 51 cm

Answer 1

We know that diagonal of a parallelogram divides it into 2 triangles of equal area

Thus,ar(ABCD)=2ar(ABC)
=2*306cm
=612 cm..

Answer 2

Answer:

Step-by-step explanation:

AB=37

BC=20

AC=51

Hence ,Using Herons Formula

Area=108/2

=54

Area of ll gm ABCD=2×54

=108cm^

Thanks have a marvellous day ahead