Question

The sides of a parallelogram are 100 m each and length of the longest diagonal is 160m. The area of parallelogram is​

Answer 1

Length of diagonal BD = 2 × √[ 100²- (160/2)² ] .

=2 × √[ 10000 - 6400]

=2 × √[3600]

= 2 × 60

= 120cm.

Area of parallogram = AC× BD/2

= 160cm × 60cm

= 9600 cm²