Transcript Lesson 5-2: Bisectors in Triangles

Lesson 5-2: Bisectors in
Triangles
Vocab
Perpendicular bisector
Angle bisector
Perpendicular bisector
• Intersects a segment at 900 and cuts it in
half
A
B
Markings tell us
this is a
perpendicular
bisector
Then these must be
the same length!
• Any point on the perp-bis is…
Same distance (equidistant) from A and B (endpoints)
Angle Bisector
• Cuts an angle in half
Then these must be
the same length!
Markings tell us
this is an
angle
bisector
• Any point on the line is…
The same distance from the sides of the angle
Example 1: Find MN
Example 1: Find x