Question

Number 28: A teacher stacks 20 unit cubes without any gaps or overlaps to form a tower. What is the volume of the tower?

Answer 1

Step-by-step explanation:

From the question we are told that there are 20 unit cubes.

Each unit cube would measure;

`\begin{gathered} length=1unit \\ width=1unit \\ height=1unit \end{gathered}`

Therefore, the volume of each cube would be;

`\begin{gathered} Volume=l* w* h \\ Volume=1*1*1 \\ Volume=1unit^3 \end{gathered}`

However, with 20 unit cubes all stacked on top of one another, the height of the entire stack/tower would now be 20 units. Note that the length and the width remains unchanged.

Therefore, the volume of the tower would be calculated as follows;

`\begin{gathered} Volume=l* w* h \\ Volume=1*1*20 \\ Volume=20units^3 \end{gathered}`

ANSWER:

Option C: 20 cubic units