Question

A paralleogram the length of whose sides are 11 and 13 and has one daigonal 20 fond the length of another daigonal

Answer 1

Answer:

Area of parallelogram=1/2 (diagonal 1)×(diagonal 2)

it is also equal to product of its sides i.e=l×b

hence

1/2×d1×d2=l×b

given d1=20

l=11

b=13

hence d2=14.3