12 4

16 311 3

13 218 2

19 3

-2 4

-6 3-1 3-3 2

-8 2

-9 3

1 21234 4 x 3 = 12

½ of 12 is 6

What’s the Volume?

You can see 11 cubes in the front. You can also see that there are 4 stacks behind it.

1

11

2

10

43

658 7

9

12

34 11 x 4 = 44

When are finding the volume of a rectangular prism or a cube, all you have to do is multiply all 3 numbers. Check back on slide 5 if you need more help.

Finding the area of the base is a god way to start to find the volume.

12 wide

6 deep10

tall

x = 72

The area of this figure is 72. Now all you have to do is multiply 72 by the height.

The problem already says the area of this triangle is 10.

All I do is imagine 8 copies of that triangle stacked on top of themselves. That way all I do is find the area and multiply it by it’s height!!!!!

Find the Area before the Volume!

The area of this rectangle is 12 x 6 = 72!!!

Now all I do is multiply the area of the base by its height 10.

72 X 10 = 720

What is the area of the base of this prism?

1 2 3 4

5 6 7 8

What is the height of this prism?

Height is 2!1

2

What is the area of of this prism?

1

2

34

5

6 7 8

9 10 11 12

13 14 15 16

…or it’s 2 units tall, it’s 4 units wide, and it’s 2 units deep. 2x4x2= 16

What is the area of the base of this prism?

What is the volume of This figure?

What is the volume of this prism?

The width of this triangle is 10

The height of this triangle is 7

The height of the whole prism is 40.