Question

Explain properly why the total surface area and lateral surface area of a cuboid is 2(lb+bh+hl) and 2(l+b)h with figure.
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Answer 1

Answer:

Lateral surface is the surface area of the four walls of a figure while total surface includes the surface area of the roof and the floor along with the walls.

Step-by-step explanation:

Area of 2 walls = lh

Area of another 2 walls = bh

Area of roof and floor = lb

So,

Lateral surface area = 2lh + 2bh = 2h(l + b)

Total surface area = 2lb + 2bh + 2lh = 2(lb + bh + lh)

Answer 2

Answer:

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