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La mediatriz de un segmento es una recta que pasa por el punto medio del segmento y es perpendicular a este. (Por conveniencia, a cualquier segmento de recta que esté contenido en la mediatriz, también lo llamaremos una mediatriz).

En este diagrama, la recta punteada es la mediatriz del segmento .

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Standards Alignment

Building On

Addressing

HSG-CO.A.1

Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.

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HSG-CO.D.12

Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.). Copying a segment; copying an angle; bisecting a segment; bisecting an angle; constructing perpendicular lines, including the perpendicular bisector of a line segment; and constructing a line parallel to a given line through a point not on the line.

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Building Toward

HSG-CO.A.4

Develop definitions of rotations, reflections, and translations in terms of angles, circles, perpendicular lines, parallel lines, and line segments.

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HSG-CO.C.9

Prove theorems about lines and angles. Theorems include: vertical angles are congruent; when a transversal crosses parallel lines, alternate interior angles are congruent and corresponding angles are congruent; points on a perpendicular bisector of a line segment are exactly those equidistant from the segment's endpoints.

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HSG-CO.D.12

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Practice

Lesson 3 Resources

Student Lesson Student Lesson in Spanish

Student Handouts

Student Task Statements

pdf

to access Curated Practice Problem Set.

to access Cool Down.

to access Curated Practice Problem Set.

to access Cool Down.