Lesson 12

1. Sketch a cube and label its side length as 4 cm (this will be Cube A).
2. Sketch a cube with sides that are twice as long as Cube A and label its side length (this will be Cube B).
3. Find the volumes of Cube A and Cube B.

Two paper drink cups are shaped like cones. The small cone can hold 6 oz of water. The large cone is $\frac43$ the height and $\frac43$ the diameter of the small cone. Which of these could be the amount of water the large cone holds?

8 cm

14 oz

4.5 oz

14 cm

The graph represents the volume of a cylinder with a height equal to its radius.

1. When the diameter is 2 cm, what is the radius of the cylinder?
2. Express the volume of a cube of side length $s$ as an equation.
3. Make a table for volume of the cube at $s =$ 0 cm, $s =$ 1 cm, $s =$ 2 cm, and $s =$ 3 cm.
4. Which volume is greater: the volume of the cube when $s =$ 3 cm, or the volume of the cylinder when its diameter is 3 cm?

Select all the points that are on a line with slope 2 that also contains the point $(2, \text-1)$.

$(3,1)$

$(1,1)$

$(1,\text-3)$

$(4,0)$

$(6,7)$

Several glass aquariums of various sizes are for sale at a pet shop. They are all shaped like rectangular prisms. A 15-gallon tank is 24 inches long, 12 inches wide, and 12 inches tall. Match the dimensions of the other tanks with the volume of water they can each hold.

Solve: $\begin{cases} y=\text-2x-20 \\ y=x+4 \\ \end{cases}$