Question

The diagram shows a solid cuboid with

dimensions a, b and c.
a)
a
Find a formula for S, the total surface area
of the cuboid, in terms of a, b and c.
Write 'S=
b)
Find the value of S when a = 3, b = 4, c = 5.

Answer 1

`s = (3 * 4)2 = 24 \\ s =(3 * 5)2 = 30 \\ s = (4 * 5)2 = 40 \\ \\ 24 + 30 + 40 = 94`