Question

adjacent sides= 40cm, 50 cm
Diagonal=70cm
find the area of parallegran?​

Answer 1

Answer:

1959.58

Step-by-step explanation:

(40+50+70) = 80

2

√80(80-40)(80-50)(80-70)

√80(40)(30)(10)

√960000

979.79

ar(ABCD)=2×ar(ABC)

=2×979.79

=1959.58