Question

1. The formula for calculating the surface area of a cube is:

SA = length × width × number of sides (6)

Therefore, the surface area of a cube that is 1 cm on a side is 1 cm × 1 cm × 6 sides = 6 cm2

2. The formula for calculating the volume of a cube is:

V = length × width × height

Therefore, the volume of a cube that is 1 cm on each side is 1 cm × 1 cm × 1 cm = 1 cm3


Calculate the SA/V ratio for a cube that is 2 cm and 3 cm on each side.


Cell Size Surface Area Volume SA/V Diffusion Time

1 cm 13:44 min

2 cm 54:35 min

3 cm 1 Hr 41:24 min

Answer 1

Answer:

The surface area of a cube = 6a2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, a is just the length of one side of a cube. We have 96 = 6a2 → a2 = 16, so that's the area of one face of the cube.

Explanation:

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