Lesson 5-4: Proving Angle Relationships

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Agenda

Science Presentation

Protractor and Angle Addition Postulates

Supplement and Complement Theorem

Vertical Angles Theorem

1.

2.

3.

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​Why are linear pairs always supplementary? Can you explain this using a specific example and justify it with a theorem or postulate?

• Spend 2-minutes individually reflecting.

• Write 1-2 sentences answering the question.

• Be ready to share with a partner.

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Identify the angle pairs:

1.Vertical Angles:

2.

Supplementary Angles

3.

Complementary Angles

Identify the angle pairs:

1.Vertical Angles:

2.

Supplementary Angles

3.

Complementary Angles

Identify the angle pairs:

1.Vertical Angles:

2.

Supplementary Angles

3.

Complementary Angles