Calculate the total surface area of a cupboard ... - WAEC Mathematics 2004 Question
Calculate the total surface area of a cupboard which measures 12cm by 10cm by 8cm
A
1920cm2
B
592cm2
C
296cm2
D
148cm2
correct option: c
Total surfaced area of a cupboard = lb + lh + bh
l = length h = height b = base
l = 12cm h = 10cm b = 8cm
T.S.A \(= (12 \times 8 \times 12 \times 10 + 8 \times 10)cm^\
= (96 + 120 + 80)cm^2 = 296cm^2\)
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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