Question

If length of a diagonal of a rhombus is 30CM and its area is 240sq cm find its perimeter​

Answer 1

Answer:

Area of rhombus is PQ/2

where P and Q are diagonals

Let P be 30, Q = ? A=240

So 240=30 X Q/2

Q=240*2/30=16

Perimeter is 2 (P + Q)

= 2 (30 + 16)=92 cm²