If you have an original sediment that is cube in shape with a length, width, and height of 1 unit each, then its overall exposed surface area will be 6 square units (1 square unit x 6 sides). If you were to break this sediment into 8 equal cubes by physical weathering, how much surface area would now be exposed?
A) 12 square units.
B) 15 square units.
C) 20 square units.
D) 30 square units.

Question

Quizplus · Accepted Answer

Each of the 8 smaller cubes will have a surface area of 1 square unit, and there will be 6 sides exposed for each cube, so the total surface area will be 8 cubes x 6 sides/cube x 1 square unit/side = 12 square units.

If You Have an Original Sediment That Is Cube in Shape