Bell Problem. 5.2 Use Perpendicular Bisectors Standards: 1.Describe spatial relationships using...
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Transcript of Bell Problem. 5.2 Use Perpendicular Bisectors Standards: 1.Describe spatial relationships using...
![Page 1: Bell Problem. 5.2 Use Perpendicular Bisectors Standards: 1.Describe spatial relationships using coordinate geometry 2.Solve problems in math and other.](https://reader031.fdocuments.us/reader031/viewer/2022032703/56649d0a5503460f949dcde8/html5/thumbnails/1.jpg)
Bell Problem
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5.2 Use Perpendicular Bisectors
Standards:1. Describe spatial relationships using coordinate
geometry2. Solve problems in math and other contexts
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Perpendicular Bisector
Perpendicular bisector- a segment, ray, line, or plane that is perpendicular to a segment at its midpoint
Equidistant- same distance from each figure
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Perpendicular Bisector TheoremIn a plane, if a point is on the perpendicular bisector of a segment, then it is equidistant from the endpoints of the segment.
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Converse of the Perpendicular Bisector Theorem
In a plane, if a point is equidistant from the endpoints of a segment, then it is on the perpendicular bisector of the segment.
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Homework
pg. 306-307 #3-6, 11-14
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Bell Problem
Solve for x: 3x + 7 = 4x - 15
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1.Fold the triangle to form the perpendicular bisectors of the sides.
2.Do the three bisectors intersect at the same point? 3.Label vertices A, B, and C4.Label point of intersection of the perpendicular
bisectors as P5.Measure AP, BP, and CP
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Point of Concurrency
Concurrent- three or more lines, rays, or segments that intersect at the same point
Point of concurrency- the point of intersection of the lines, rays, or segments
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Concurrency of Perpendicular Bisectors of a Triangle
The perpendicular bisectors of a triangle intersect at a point that is equidistant from the vertices of the triangle. If ___, ___, and ___ are perpendicular bisectors, then ___ = ___ = ___
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Circumcenter Circumcenter- the point of concurrency of the three perpendicular bisectors of a triangle
The circumcenter P is equidistant from the three vertices, so P is the center of a circle that passes through all three vertices
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Circumcenter
The circle with center P is said to be circumscribed about the triangle
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Homework
5.2 Practice A worksheet