Question

two adjacent sides of a parallelogram are 5cm and 3.5cm one of its diagonals is 6.5cm find the area of parallelogram

Answer 1

Hey! ^ ^

®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®

ABCD is 11gm

=>AB = CD = 17cm

(Opposite sides of 11gm are equal)

=>AD = BC = 13cm

Area of ΔABC = Area of ΔACD 

Use herons formula :-

Let :-

=>a = 17 cm

=>b = 13 cm

=>c = 20 cm

=>S=a+b+c/2

=>S=17cm+13cm+20cm/2

=>S=50/2

=>S=25 cm

: There ar(ABCD)

=√s(s-a)(s-b)(s-c)

=√25(25-17)(25-13)(25-20)

=√25×8×12×5

=>ar(ABCD)=Area of ΔABC+Area of ΔACD

=2×Ar(ΔABC)

=40×5.5cm²

=220cm²

®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®®

Regards :)

Yash Raj ✌

Answer 2

Answer:

PLEASE MARK ME A BRAINLIEST ANSWERS