Video Transcript
The amount of wax this candle mold
can hold is measured in cubic units. Find how much wax it can hold by
using the expression 𝑠 multiplied by 𝑠 multiplied by 𝑠, where 𝑠 is the length of
a side.
We know that the volume of any 3D
shape is measured in cubic units. And the volume of a cube is equal
to the side length multiplied by the side length multiplied by the side length. This can also be written 𝑠
cubed. In this question, we are told that
the mold has a side length of 14 units. Therefore, its volume will be equal
to 14 multiplied by 14 multiplied by 14. We can begin by multiplying 14 by
14. We know that 14 multiplied by 10 is
140, and 14 multiplied by four is 56. This means that 14 multiplied by 14
or 14 squared is equal to 196.
There are lots of ways we could
multiply this by 14. One way would be to multiply 200 by
14 first. This is equal to 2,800 as two
multiplied by 14 is 28. We already know that four
multiplied by 14 is equal to 56. We can then subtract these so that
196 multiplied by 14 is equal to 2,744. We can therefore conclude that the
candle mold can hold 2,744 cubic units of wax.
