Download presentation

Presentation is loading. Please wait.

Published byDevyn Devin Modified over 2 years ago

1
Volumes of Rectangular Prisms and Cylinders Lesson 9-9

2
Vocabulary The volume of a three-dimensional figure is the number of cubic units needed to fill the space inside the figure. A cubic unit is a cube that measures 1 unit long, 1 unit wide, and 1 unit high.

3
Counting Cubes If the figure is split into cubes already, then just count the cubes in one layer and multiply that by the number of layers. The top layer is 4 x 5, or 20 cubic units. There are 20 cubic units per layer, times 3 layers, for a volume of 60 cubic units.

4
Using Formulas To find the volume of a rectangular prism or a cylinder, multiply the area of the base by the height. Volume = Area of Base x height V = Bh (The capital B does not stand for base, it stands for area of the base.)

5
Volume of a Rectangular Prism V = Bh In this case, the base is a rectangle. The area formula for a rectangle is l x w. V = (l x w) x h V = (4 x 3) x 12 V = 144 cm 3 Volume gives us cubic units.

6
Volume of a Cylinder 5 in 16 in V = Bh In this case, the base is a circle. The area formula for a circle is r 2 V = ( r 2 ) x h V = (3.14)(5 2 )(16) V = (3.14)(25)(16) V = 1,256 in 3

7
Homework Time V = l w h

Similar presentations

OK

10-8 Finding Volume Course 1 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day.

10-8 Finding Volume Course 1 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on power system stability equal area Ppt on life cycle of silkworm Ppt on single phase energy meter Training ppt on motivation Ppt on call center training Ppt on natural resources for class 9 Ppt on hydrostatic forces on submerged surfaces Ppt on relations and functions for class 11th english Ppt on regular expression test Free ppt on save environment