Unit 1

Find D

• ∠D=116°

• ∠D=64°

• ∠D=180°

• ∠D=26°

Find C

• ∠C=116°

• ∠C=64°

• ∠C=180°

• ∠C=26°

• 104^o

• 115^o

• 124^o

• 119^o

Which could be used to prove the lines are parallel?

• Alternate Interior Angles Converse

• Same-Side Interior Angles Converse

• Corresponding Angles Converse

• Cannot be proved parallel

• Sweet!

• Cool.

• Right on.

Find the midpoint: (-1,9), (7,-1)

• (4,5)

• (4,3)

• (3,4)

• (5,4)

Which of the following is the correct midpoint formula given two endpoints (x₁, y₁) and (x₂, y₂)?

• 
• 
• 
• 

Find the other endpoint of the line segment with the given endpoint (1,-9) and midpoint (-9,3)

• (-19,15)

• (5,-6)

• (-4,-3)

• (6,2)