4.7 Info about segments

4.7 Info about segments

Median: A segment that extends from a vertex to the opposite side

- Segment intersects the side at the midpoint

- 3 per triangle

Altitude: A segment that extends from a vertex to the opposite side

- Creates rt. angles

- 3 per triangle

- Located IN, ON THE SIDE of or OUTSIDE of a triangle.

- If a point lies an a perpendicular bisector of a segment, the point is equidistant to the endpoints of the segment

- Converse is also true

- If an angle bisector contains a point, then the point is equidistant from the sides of the angle (the new segments must be perpendicular to the rays of the angle)

- Converse is also true

VIDEO: http://vimeo.com/16443191