A rhombus shaped sheet with perimeter 40cm and one diagonal 12cm ,is painted on both sides at the rate of rs.5 per m².find the cost of painting
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p= 40cm
so lenth of one side is 10
p of rhombus = square
area of rhombus=10×12
=120cm^2=1.2m^2
cost= 1.2×5
=rs 6
so lenth of one side is 10
p of rhombus = square
area of rhombus=10×12
=120cm^2=1.2m^2
cost= 1.2×5
=rs 6
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