CCSS.Math.Content.HSG.CO.C.9

What type of angle is this?

• straight
• acute
• obtuse

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CCSS.Math.Content.HSG.CO.C.9

Angles 1 and 2 are what types of angles?

• Alternate exterior

• Congruent

• Adjacent Angles

• Supplementary

• Complementary

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CCSS.Math.Content.HSG.CO.C.9

Vertical angles______________________

• are congruent

• are supplementary

• share a vertex

• share a side

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CCSS.Math.Content.HSG.CO.C.9

What special angle relationship do angles 1 and 5 have?

• Vertical Angles

• Alternate Interior angles

• Alternate Exterior Angles

• Corresponding Angles

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CCSS.Math.Content.HSG.CO.C.9

What special angle relationship do angles 4 and 5 have?

• Vertical Angles

• Alternate Interior angles

• Alternate Exterior Angles

• Corresponding Angles

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CCSS.Math.Content.HSG.CO.C.9

 $\angle5$  and  $\angle6$  are ___.  

• Alternate Interior Angles

• Alternate Exterior Angles

• Same-side Interior Angles

• Corresponding Angles

• None of these

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CCSS.Math.Content.HSG.CO.C.9

What is Reason C?

• Definition of Congruence

• Definition of Vertical Angles

• Reflexive Property

• Vertical Angle Theorem

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CCSS.Math.Content.HSG.CO.C.9

What is the value of x?

• 51⁰

• 90⁰

• 39⁰

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CCSS.Math.Content.HSG.CO.C.9

Given: ∠1 and ∠3 are vertical angles. What should you conclude by the vertical angles theorem?

•  $\angle1$  and $\angle3$  are a linear pair

•  $\angle1$  and $\angle3$  are right angles.

•  $\angle2\cong\angle3$  

•  $\angle1\cong\angle3$  

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CCSS.Math.Content.HSG.CO.C.9

In the given proof, what is the reason for final step?

• Reflexive Property of Congruence

• Corresponding Parts of Congruent Triangles are Congruent

• Angles that form a linear pair are supplementary.

• Alternate Interior Angles are Congruent.

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CCSS.Math.Content.HSG.CO.C.9