Question

in the adjoining figure, quadrilateral PQRS is given in which PQ =21cm, QR =29cm RS =42cm, SP =34cm and diagonal PR =20cm. Find the area of quadrilateral.​

Answer 1

Answer:

In∆PQR= 1/2×29×21

= 1/2×609

304.5 sq cm

In ∆PRS= 1/2×42×34

21× 34

714 sq cm

In Quadrilateral PQRS = 304.5+714

1018.5 Sq cm