Q3. A picture is painted on a cardboard 8cm long and 5cm wide such that there is a margin of 1.5cm along each of its sides. Find the total area of the margin
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Answer:
30cm^2
Step-by-step explanation:
Length of cardboard = 8cm
Breadth of cardboard = 5cm
Distance from painting to margin = 1.5cm
Length of painting = 5cm (8 - 1.5 + 1.5 = 5cm)
Breadth of Painting = 2cm (5 - 1.5 + 1.5 = 2cm)
Area of Cardboard = l * b
= 8 * 5
= 40cm^2
Area of Painting = l * b
= 5 * 2
= 10cm^2
Area of Margin = Area of Cardboard - Area of Painting
= 40 - 10
= 30cm^2
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ur answer izz in attachment
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