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Chapter 1 Exploring Geometry: Points, Lines, and Angles in the Plane. Section 3 Copying and Bisecting Angles Objectives: Students will be introduced to angles and be able to draw and bisect angles using a compass. Angle.
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Chapter 1 Exploring Geometry: Points, Lines, and Angles in the Plane Section 3 Copying and Bisecting Angles Objectives: Students will be introduced to angles and be able to draw and bisect angles using a compass.
Angle An angle () is a figure formed from two rays (called the sides of the angle)with the same endpoint (called thevertex of the angle). Side XW W X Vertex Point X Y Side XY Section 3 - Copying and Bisecting Angles
A 1 B C • If there is more than one angle at a vertex, • name the angle using three letters, with the • middle letter being the vertex. ABC or CBA Vertex Naming an Angle • If there is only one angle at a vertex, you can use a single letter to name the vertex of the angle. B • An angle can also be named by a number. • 1 Section 3 - Copying and Bisecting Angles
Q 3 R S Answer: Sides - RQ and RS Vertex - Point R Example 1 • Name the angle in as many ways as possible. • Name the sides and the vertex of the angle. Answer: R, 3, QRS, or SRQ Section 3 - Copying and Bisecting Angles