Discussion
Find the surface area of a cuboid 16 m long, 14 m broad and 7 m high.
Answer: C
A cuboid has three pairs of identical faces.
\[ \text{TSA} = 2(lb + bh + hl) \]
\[ = 2(16 \times 14 + 14 \times 7 + 7 \times 16) \]
\[ = 2(224 + 98 + 112) = 2 \times 434 = 868 \text{ m}^{2} \]
The volume, a different quantity, would be \( 16 \times 14 \times 7 = 1568 \) m³.
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