Lesson 3.1 Identify Pairs of Lines and Angles. Objective Identify angle pairs formed by three intersecting lines.

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Presentation transcript:

Lesson 3.1 Identify Pairs of Lines and Angles

Objective Identify angle pairs formed by three intersecting lines

Standard Prep for Students prove and use theorems involving the properties of parallel lines cut by a transversal, the properties of quadrilaterals, and circles

Academic Language Parallel lines Skew Lines Parallel planes Transversal Corresponding angles Alternate interior angles Alternate exterior angles Consecutive interior angles

Parallel Lines Two coplanar lines that don’t intersect

Skew Lines Two non-coplanar lines that don’t intersect

The Visual

Example

Refresh How many times do parallel lines intersect? How many times do perpendicular lines intersect? And what do they form?

Transversal A line that intersects two or more coplanar lines at different points l m transversal t

Angles formed by transversals

Example

Write it out What is an easy way to remember the different pairs of angles. Use appropriate academic language.

Homework p.150 #1, 2, 5, 6, 9, 16, 18, 24, 29, 48

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