Question

a rhombus shaped sheet with perimeter 40cm and one diagonal 12 cm is painted on both side of rupees 5 per CM square find the cost of painting ​

Answer 1

Answer:

In a rhombus, diagonals intersect at 90 degree.

So by Pythagoras theorom,

6^2+x/2^2=10^2

100-36=x/2^2

X/2=8

X=16

Area of rhombus =product of diagonals/2

=16*12/2=96cm2

Area of both sides=192cm2

Cost=192*5=960