Angles, Circles, and Lines Defined

Grade 945 min

aligned to 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.

Learning Objective

I can define angle, circle, perpendicular line, parallel line, and line segment using the basic ideas of point, line, distance along a line, and distance around a circular arc.

Lesson Flow

Watch Video

5 min

Parallel, Intersecting, and Perpendicular Lines | Geometry | Math with Mr. J

Unknown Channel

Practice

14 min

11 questions • Short answer

Exit Ticket

5 min

Describe the key characteristic that distinguishes parallel lines from intersecting lines. Describe the relationship between intersecting lines and perpendicular lines. Explain what must be true about the angles formed by two intersecting lines for them to be considered perpendicular.

Teacher Guide

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  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts