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Calculate the total surface area of a cupboard which measures 12cm by 10cm by 8c...


Question

Calculate the total surface area of a cupboard which measures 12cm by 10cm by 8cm

Options

A) 1920cm2

B) 592cm2

C) 296cm2

D) 148cm2

The correct answer is C.

Explanation:

Total surfaced area of a cupboard = lb + lh + bh
l = length h = height b = base
l = 12cm h = 10cm b = 8cm
T.S.A \(= (12 \times 8 \times 12 \times 10 + 8 \times 10)cm^\\= (96 + 120 + 80)cm^2 = 296cm^2\)

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Dicussion (1)

  • Total surfaced area of a cupboard = lb + lh + bh
    l = length h = height b = base
    l = 12cm h = 10cm b = 8cm
    T.S.A \(= (12 \times 8 \times 12 \times 10 + 8 \times 10)cm^\\= (96 + 120 + 80)cm^2 = 296cm^2\)