Question

find the area of a rhombus having sides equal to 13 cm and one of its diagonal 10 cm

Answer 1

It's formula is
p=diagonals
Q=side
Area = pq/2
=10*13/2
=5*13
=65

Answer 2

Answer:

13sq-25sq=144=12sq

So l of other diagonal is 2*12=24

So ar =1/2 *24*10

=120