Question

If the area of a rhombus is 216 cm sq and one of its diagonal is 18 cm.Find its perimeter

Answer 1

First of all we have to find one side of the diagonal.
i.e = 216/18
=12
Since all the sides of the rhombus are equal,
Perimeter=4×(s)
=4×12
=48cm²
P=48cm²