Question

A rhombus shaped sheet with perimeter 40cm and one of the diagonal as 12cm is painted on both the sides at the rate of 8 per m.find the cost painting
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Answer 1

Answer:

Perimeter =40

Diagonal =12cm

sides at the rate =8per

Step-by-step explanation:

40×12=480

480+8 =480 is the cost of the paint

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Answer 2

Step-by-step explanation:

Given

diagonal =12cm

Area of rhombus =1/2(product of its diagonals)

=1/2(12×12)

=1/2(144)

=72cm^2

if we are painting on both sides

then, 2×72cm^2

=144cm^2

the cost of painting 1m^2 is =rs.8

then, 1cm^2=8/10000

=0.0008×144

= rs.0.1152

hope these is helpful