1 / 9

SURFACE AREA

The surface area of a polyhedron is equal to the sum of the area of all of its faces. It is the total area covered by the net of a polyhedron. Let's take a look at a cube. SURFACE AREA. Visualize a cube from the figure below. 1. 2 cm 2. 3 cm 3. 4 cm 4. 5 cm.

magda
Download Presentation

SURFACE AREA

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The surface area of a polyhedron is equal to the sum of the area of all of its faces. It is the total area covered by the net of a polyhedron. Let's take a look at a cube. SURFACE AREA

  2. Visualize a cube from the figure below 1. 2 cm 2. 3 cm 3. 4 cm 4. 5 cm What is the surface area of each cube based from the measurements at the right.

  3. To find the surface area of any shape, you can follow the process described below: 1. Draw a net of the polyhedron. 2. Calculate the area of each face. 3. Add up the area of all the faces.

  4. Answers: 1. 24 cm2 2. 54 cm2 3. 96 cm2 4. 150 cm2

  5. SURFACE AREA OF A PRISM http://www.learner.org/interactives/geometry/area_surface.html

  6. http://www.learner.org/interactives/geometry/3d_prisms.html

  7. 5 m 3 m 10 m Find the surface area. • Cube • Rectangular Prism 3. Nena has a sewing box that is 24 cm by 20 cm by 7 cm. She wants to wrap the whole box with silk cloth. What is the area to be covered? 6cm http://staff.argyll.epsb.ca/jreed/math9/strand3/3107.htm

  8. Answers: 1. 216 cm2 2. 190 cm2 3. 1 576 cm2

  9. SURFACE AREA OF A CYLINDER 1. http://www.brainingcamp.com/resources/math/surface-area/interactive.php 2. http://www.learner.org/interactives/geometry/area_surface2.html 3. http://staff.argyll.epsb.ca/jreed/math9/strand3/3107.htm

More Related