Notes

Slide Show

Outline

1	Triangles I
2	Definition Polygon – a closed many straight-sided figure.
3	Definition Angle – two rays that meet at a common end point.
4	Definition Degree – a unit of measurement of an angle or arc, represented by the symbol º.
5	Definition Triangle – a polygon with 3 angles and 3 straight sides.
6	Property of triangles The sum of all the angles equals 180º degrees.
7	Property of triangles The sum of all the angles equals 180º degrees.
8	Property of triangles The sum of all the angles equals 180º degrees.
9	Property of triangles The sum of all the angles equals 180º degrees.
10	What is the missing angle?
11	What is the missing angle?
12	What is the missing angle?
13	What is the missing angle?
14	What is the missing angle?