Question

A painting 40 cm long and 28 cm wide is painted on a cardboard such that there is a margin 2 cm along each of ita sides.Find the total area of the margin. Show in steps​

Answer 1

• 288 cm²

Explanation:

Total area including margin:

• A = (40 + 2*2)(28 + 2*2) = 44*32 = 1408 cm²

Area of the painting without margin:

• A = 40*28 = 1120 cm²

Area of the margin is the difference of the above two:

• 1408 - 1120 = 288 cm²

Answer 2

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