Question

1.
Find the surface area of the cuboid given below:
18 cm
4 cm
12 cm​

Answer 1

Answer:

2(lb+bh+hl)

2(18×4+4×12+18×12)

2(72+48+216)

2(336)

=672

Answer 2

Answer:

A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.