Question

Adjacent Sides of a parallelogram are 11 cm and 17 cm. If the length of one of its diagonals i cm, find the length of the other diagonal.​

Answer 1

ANSWER

Sides of a parallelogram and diagonal of the parallelogram are related as:

d12+d22=2(a2+b2) where a and b are sides and d1 and d2 are diagonals

Given, a = 11 cm, b = 17 cm and d1=26cm

262+d22=2(112+172)

676+d22=2(121+289)

d22=144

d2=12cm