Home » Aptitude » Area

A parallelogram has sides 30m and 14m and one of its diagonals is 40m long. Then its area is

Correct Answer: 336

Explanation:

let ABCD be the given parallelogram 


area of parallelogram ABCD = 2 x (area of triangle ABC) 


now a = 30m, b = 14m and c = 40m


 s=1/2 x (30+14+40) = 42 


 


Area of triangle ABC =  s s - a s - b s - c   


 


= 42 12 28 2 = 168sq m 


area of parallelogram ABCD = 2 x 168 = 336 sq m


← Previous Question Next Question→

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion