How To Tell If Two Lines Are Parallel, Perpendicular, or Neither?
How To Tell If Two Lines Are Parallel, Perpendicular, or Neither?

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Published byFlorence Charles Modified over 7 years ago

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Warm-Up Match the symbols > Line segment Ray II Perpendicular
Triangle Line Parallel Angle Circle

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Angle Pairs EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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A line that intersects two parallel lines is called a transversal.
EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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Corresponding angles are on the same side of a transversal and are congruent.
EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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Alternate interior angles are on opposite sides of a transversal and are located in between the two parallel lines. Alternate interior angles are congruent. EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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Alternate exterior angles are on opposite sides of a transversal and are on the exterior of the two parallel lines. Alternate exterior angles are congruent. EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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Consecutive interior angles are on the same side of a transversal and are between the two parallel lines. Consecutive interior angles are supplementary which means they add up to 180 degrees. EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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Vertical angles are opposite each other and are congruent.
EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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Given the angle measurements, find the angle measurements of all other angles.
42 ̊ EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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Given the angle measurements, find the angle measurements of all other angles.
EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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Homework Page # 11-15,18-23 Write up questions and summaries of Cornell notes. EQ: What are angle pair relationships and what do we know about them? We will write and discuss angle pair relationships.

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