1 / 13

Surface Area and Nets

Surface Area and Nets. Polyhedron. Polyhedron: a 3-dimensional object, or solid, whose faces are polygons. Polyhedron. Parts of Polyhedrons. Face: a flat surface on a solid Edge: segments joining faces together Vertex: corner; the point where 3 or more faces meet. Prism.

meir
Télécharger la présentation

Surface Area and Nets

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. Surface Area and Nets

  2. Polyhedron • Polyhedron: a 3-dimensional object, or solid, whose faces are polygons

  3. Polyhedron

  4. Parts of Polyhedrons • Face: a flat surface on a solid • Edge: segments joining faces together • Vertex: corner; the point where 3 or more faces meet

  5. Prism • Prism: a polyhedron whose bases are congruent and parallel • Prisms are named for the shape of their bases.

  6. Pyramid • Pyramid: a polyhedron that has a polygonal base but comes to a point

  7. Pyramid • Pyramids are named after the shape of their base

  8. Nets • Net: a flat figure that can be folded to form a closed three-dimensional object (solid). • We can use nets to help figure out the surface area of a solid shape • http://www.learner.org/interactives/geometry/area_surface.html

  9. Nets • Rectangular Prism

  10. Nets • Triangular Prism

  11. Nets • Square Pyramid

  12. Surface Area • Surface Area: the sum of the areas of all the faces of a 3D figure • To find the surface area of any shape, you can follow the process described below: • Draw a net of the polyhedron. • Calculate the area of each face. • Add up the area of all the faces.

  13. Sources • Most of the information and some of the pictures on these slides comes from mathisfun.com • Some information comes from the textbook: Middle School Math by Scott Foresman—Addison Wesley Course 2, 1998 • Some drawings come from various locations on the web

More Related