1 / 9

7.4 Regular Polygons

7.4 Regular Polygons. Recognize regular polygons Use formulas to find measure of an exterior angle of an equiangular polygon. Regular Polygons: Equilateral and equiangular. T58: The measure E of each exterior angle of an equiangular polygon of n sides is given by the formula E = 360.

iwalani-david
Télécharger la présentation

7.4 Regular 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. 7.4 Regular Polygons Recognize regular polygons Use formulas to find measure of an exterior angle of an equiangular polygon

  2. Regular Polygons:Equilateral and equiangular

  3. T58: The measure E of each exterior angle of an equiangular polygon of n sides is given by the formula • E = 360 n

  4. Find m<1 in the figure below m<1 = 360 5 m<1 = 72 1 T58: The measure E of each exterior angle of an equiangular polygon of n sides is given by the formula E = 360 n

  5. Problems: 1. How many degrees in each exterior < of an equiangular heptagon? E = 360 7 = 51 3/7

  6. 2. If the exterior angle of a polygon is 18, how many sides does the polygon have? E = 360 n 18 = 360 Plug in 18 for E n 18n = 360 Multiply both sides by n n = 20 sides Divide by 18

  7. 3. If each angle of a polygon is 108, how many sides does it have? First find the exterior angle. 180 - 108 = 72 Set up with correct formula: E = 360 n solve

  8. Remember to show your work! 72 = 72n = 360 n = 5 The shape has 5 sides.

  9. Given the stop sign shown, is NTE scalene, isosceles, equilateral or undetermined? O I T N isosceles S Q U E

More Related