1 / 9

Lesson 61: Perimeter of a Polygon

Lesson 61: Perimeter of a Polygon. Ms. Jamie Scordino 3 rd Grade Math. Review Rules of Polygons. A polygon is a plane shape with straight sides. 1) 2-dimensional (2D) 2) Made of straight lines 3) Closed (all lines connect). Key Vocabulary.

cael
Télécharger la présentation

Lesson 61: Perimeter of a Polygon

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. Lesson 61: Perimeter of a Polygon Ms. Jamie Scordino 3rd Grade Math

  2. Review Rules of Polygons A polygon is a plane shape with straight sides. 1) 2-dimensional (2D) 2) Made of straight lines 3) Closed (all lines connect)

  3. Key Vocabulary The perimeter of a polygon is the distance around the outside of the polygon.

  4. Perimeter Perimeter - add all sides. 7mm 3mm 7mm + 3mm 20 mm

  5. Perimeter Perimeter - add all sides. 5 units 4 units 2 units 7 units + 1 unit 19 units

  6. Perimeter Perimeter - add all outside sides. Remember it is the distance AROUND the outside! 3 units 4 units 3 units 3 units 6 units + 10 units 29 units

  7. Perimeter Perimeter - add all sides. Sometimes you need to figure out a side 6 cm 3 cm 6 cm + 3 cm 18 cm 3 cm 6 cm

  8. Perimeter Practice Click on the following link to practice finding the perimeter of polygons. http://www.funbrain.com/cgi-bin/poly.cgi?A1=s&A2=2&A15=1&INSTRUCTS=1

  9. Your Turn Thank you for a great lesson!

More Related