Volume of Triangular and Trapezoidal Prisms

Refer to side board for today’s warm up.

We will be reviewing common errors from Friday’s quiz.(Quizzes will be returned tomorrow.)

Pay attention to the triangles!

Let’s start off the week with a Triangular Prism.

Let’s look at shapes we are familiar with, a Rectangular Prism and a Cylinder.

Try to find a pattern for volume.

How would you find out how much space each of these objects takes up?

The formula for the volume of a rectangular prism can be used for ANY prism.

V = Bh

V = Area of Base x Height

Volume is the amount of space a three dimensional object takes up.

Example #1

Bradley’s tent is in the shape of a triangular prism. How many cubic feet of space are in his tent?

Volume = Area of Base x Height

Area of Base =

Height =

Volume = 12 x 9 =

Example #2

Cherise is setting up her tent. Her tent is in the shape of a trapezoidal prism. How many cubic feet of space are in her tent?

Volume = Area of Base x Height

Area of Base =

Height=

Volume = 20 x 9 =

Find the Volume of these figures.

1,848 m3 2,200 cm3

Classwork/Homework:Go Math! Pg. 293 #1,2,7-11,15

Show all work. Will add 4 more questions tomorrow.

Unit Test on Thursday April 16Circumference, Circle Area, Surface Area and Volume