A poster of size 60 cm by 40 cm is pasted on a cardboard by taking a margin of 2 cm along each side of poster. Find total area of the margin and the cost of the cardboard used at the rate of 1.85 per cm*.
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Answer:
Step-by-step explanation:
The length of the cardboard is 20cm +3.5cm +3.5cm=27cm
The width of the cardboard is 16cm + 3.5cm + 3.5cm=23cm
a) Area of margin= area of cardboard - area of poster
=(27cm×23cm)-(20cm×16cm)
=621cm²-320cm²
=301cm²
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