Question

Here are three similar cuboids, A, B and C.

A has length 6 cm, width 2 cm
and height 5 cm
B has length 12 cm
C has length x cm
a) The total surface area of A is 104 cm
What is the total surface area of B?

Answer 1

The total surface area of cuboid B is 164 cm².

Step-by-step explanation:

To find the total surface area of cuboid B, we can use the formula for surface area of a cuboid: SA = 2lw + 2lh + 2wh, where l, w, and h are the length, width, and height respectively. Since the length of B is given as 12 cm, we can substitute the values into the formula to calculate the surface area:

SA = 2(12)(2) + 2(12)(5) + 2(2)(5) = 24 + 120 + 20 = 164 cm²

Therefore, the total surface area of cuboid B is 164 cm².