Download presentation

Presentation is loading. Please wait.

Published byAlexandra O’Neal’ Modified over 8 years ago

1
Warm Up Find the perimeter and area of each polygon. Show work and include units! 1. 2. 3. 7 in 6 in 5 in 25 m 20 m 12 m 13 m 14 cm 11 cm 8 cm

2
Lesson 5-1: Surface Area of Cubes and Rectangular Prisms I can… find the surface area of a cube. find the surface area of a rectangular prism. Vocabulary Surface Area Net Cube Right Prism

3
Surface Area The total area of the surface of a three dimensional object *We will use nets to help us determine the surface area

4
Net A two-dimensional figure that can be folded on its segments or curved on its boundaries to form a three-dimensional figure.

5
Cube A three-dimensional figure with 6 square faces.

6
Surface Area of a Cube First, let’s draw a net of a cube. 1. If one side length is 3 cm long, what is the area of one square? 2. How many squares do we have? 3. What is our surface area for this cube? 9 squared cm 6 squares 54 squared cm

7
Video Over Surface Area of a Cube http://www.youtube.com/watch?v=sskf3tF2heU

8
Examples What is the surface area of the cube?

9
Right Prism A prism that has two bases, one directly above the other, and has its lateral faces as rectangles.

10
Rectangular Prism A prism with six rectangular faces.

11
Video Over Surface Area of a Rectangular Prism http://www.youtube.com/watch?v=oR1ukNC1pvA

12
Surface Area of a Rectangular Prism First, let’s draw a net of a rectangular prism. SA= 2[(length x width) +(length x height)+(width x height)] SA= 2[(3 x 2)+(3 x 6)+(2 x 6)] SA= 2[(6)+(18)+(12)] SA= 2(36) SA= 72 squared cm

13
Examples What is the surface area of the rectangular prism? SA= 2[(5 x 4)+(5 x 10)+(4 x 10)] SA= 2[(20)+(50)+(40)] SA= 2(110) SA= 220 squared cm

Similar presentations

© 2023 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google