1 / 9

Polygons

Polygons. Learning Goals. LG: Describe and compare the sides and angles of regular and irregular polygons . Kid Friendly: Be able to tell the difference between what is a polygon and what is not What I think I know:. Definition.

nile
Download Presentation

Polygons

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. Polygons

  2. Learning Goals • LG: Describe and compare the sides and angles of regular and irregular polygons. • Kid Friendly: Be able to tell the difference between what is a polygon and what is not • What I think I know:

  3. Definition • A polygon is a shape with straight sides that are all connected • They are 2 dimensional • Polygon is greek. Poly – means “many” and Gon – means “angle” Polygon (straight sides) Not a Polygon (has a curve) Not a Polygon (open, not closed)

  4. Examples of Polygons – what shapes do you know that would qualify?

  5. My Examples

  6. Two Types of Polygons • There are two different types of polygons • Regular polygons: All sides and angles are equal • Irregular polygons: Not all sides and angles are equal Regular Irregular

  7. Congruent Polygons • Definition: Polygons are congruent when they have the same number of sides,all sides are the same length,and all angles are the same amount. • The polygon will have the same shape and size, but one may be rotated, reflected or translated • http://www.mathopenref.com/congruentpolygons.html • Click the link to see congruent polygons rotated, reflected, and translated

  8. Practice • Draw the following: • 5 examples of shapes that are polygons (make some more than 4 sided) • 5 examples of shapes that are NOT polygons – state why they are not • 3 examples of regular polygons • 3 examples of irregular polygons • Draw an irregular polygon on a think piece of paper. • Make it your stencil. Trace your stencil onto a piece of paper, but move it around so it looks different (flip, turn it, twist it) • Draw other shapes on your page. You may draw some that look very similar to your stencil • Have a partner circle ALL of the polygons that are congruent to your stencil

  9. Today’s Schedule

More Related