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5.2 Perpendicular and Angle Bisectors • A point is equidistant from two objects if it is the same distance from the objects.
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5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

Jan 15, 2016

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Scarlett Brown
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Page 1: 5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

5.2 Perpendicular and Angle Bisectors

• A point is equidistant from two objects if it is the same distance from the objects.

Page 2: 5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

Perpendicular Bisector Theorem

• If a point is on the perpendicular bisector of a segment, then it is equidistant from the endpoints of the segment.

Page 3: 5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

Converse of the Perpendicular Bisector Theorem

• If a point is equidistant from the endpoints of a segment, then it is on the perpendicular bisector of the segment.

Page 4: 5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

Using the Perpendicular Bisector Theorem• What is the length of segment AB?

BA = BC 4x = 6x – 10 -2x = -10 x = 5

AB = 4x AB = 4 (5) AB = 20

Page 5: 5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

Distance from a Point to a Line

• The distance from a point to a line is the length of the perpendicular segment from the point to the line.– Is also the length of the shortest segment from

the point to the line.

Page 6: 5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

Angle Bisector Theorem

• If a point is on the bisector of an angle, then the point is equidistant from the sides of the angle.

Page 7: 5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

Converse of the Angle Bisector Theorem

• If a point in the interior of an angle is equidistant from the sides of the angle, then the point is on the angle bisector.

Page 8: 5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

Using the Angle Bisector Theorem• What is the length of segment RM?

RM = RP 7x = 2x + 25 5x = 25 x = 5

RM = 7x RM = 7 (5) RM = 35

Page 9: 5.2 Perpendicular and Angle Bisectors A point is equidistant from two objects if it is the same distance from the objects.

More Practice!!!!!

• Homework – Textbook p. 296 – 297 #6 – 22.