0

In the given Figure, PQRS is a quadrilateral, If QR=18 cm and PS=9 cm, then find the area of PQRS in sq. cm ?

 
A) 64 √3 / 3 sq. cm

B) 177 √3 /2 sq. cm

C) 135 √3 /2 sq. cm

D) 98 √3 /2 sq. cm