1 / 9

The 5 Angle Rules All you need for almost any angle problem

The 5 Angle Rules All you need for almost any angle problem. 2. ?. ?. 1. ?. 4. ?. ?. 3. 1. 2. 3. Parallel lines. 4. 5. Any Triangle All angles add up to 180 o Special triangles: Isosceles Triangle: 2 equal angles Equilateral Triangle: 3 equal angles (all 60 o ).

bcrystal
Download Presentation

The 5 Angle Rules All you need for almost any angle problem

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 5 Angle Rules All you need for almost any angle problem 2 ? ? 1 ? 4 ? ? 3

  2. 1 2 3

  3. Parallel lines 4

  4. 5 • Any Triangle All angles add up to 180o Special triangles: • Isosceles Triangle: 2 equal angles • Equilateral Triangle: 3 equal angles (all 60o) Only need 1 angle to find all the rest All angles equal, so all angles 60o

  5. The 5 Angle Rules All you need for almost any angle problem 2 ? 1 ? ? 4 ? ? 3

  6. What is the smallest number of triangles you can split this shape up into? Total angles in 3 triangles = 3 x 180 = 540o So total angles in a pentagon = 540o

  7. Hexagon = 6 sides 4 triangles = 4 x 180 = 720o

  8. Heptagon = 7 sides 5 triangles = 5 x 180 = 900o

  9. Dodecagon = 12 sides 10 triangles = 10 x 180 = 1800o

More Related