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Sec 5-1 Perpendiculars and Bisectors. Perpendicular Bisector (Review). Perpendicular Bisector – A line, ray or segment that: a) bisects a segment AND b) is perpendicular to the segment. B. p. 1. C. A. The Perpendicular Bisector Theorem
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Perpendicular Bisector (Review) Perpendicular Bisector – A line, ray or segment that: a) bisects a segment AND b) is perpendicular to the segment B p 1 C A
The Perpendicular Bisector Theorem If a point is on the perpendicular bisector of a segment, then it is equidistant from the endpoints of the segment C A B D
The Converse of the Perpendicular Bisector Theorem If a point is equidistant from the endpoints of a segment, then the point lies on the perpendicular bisector of the segment C A B
Distance from a point to a line – The length of the perpendicular segment from the point to the line Q f P PQ is the distance from Point P to line f
The Angle Bisector Theorem If a point is on the bisector of an angle, then the point is equidistant from the sides of the angle F C A B D E
Ex#1 Find the perimeter of ACBD C By the Perpendicular Bisector Theorem, 5 5 A B 6 6 So the perimeter of ACBD is 22 D
Ex#2 Find the value of x, then find FD and FB C By the Angle Bisector Theorem, B D F 5x 2x + 24