Question

in a quadrilateral pqrs,pq=3cm,qr=4cm,rs=8cm,sp=7cm and pr=5cm. find the area of quadrilateral pqrs​

Answer 1

Step-by-step explanation:

The area of quardrilateral = 3×4×8×7×5 = 3360 sq cm

Answer 2

In triangle PQR -

s = 5 + 4 + 3 x ½

= 6

area of PQR = √6(6-4)(6-4)(6-5) cm sq

= √6x2x3x1 cm sq

= 6 cm sq

In triangle PRS -

s = 8 + 5 + 7 x ½

= 10

area of PRS = √10(10-5)(10-7)(10-8) cm sq

= √10x5x3x2 cm sq

= 10√3 cm sq

area of quadrilateral PQRS

= ar(PQR) + ar(PRS)

= 6 + 10√3

HOPE THIS ANSWER WAS HELPFUL