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
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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
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