2-4 Angle Proofs Pt. 1

2-4 Angle Proofs Pt. 1

Objective: I can use angle theorems to solve proofs.

Directions

Complete the slideshow in order. Some slides will contain quizizz questions while others will contain clips from the lesson video.

Multiple Choice

Using the image shown, name an angle correctly.

•  $\angle FAE$  

•  $\angle CDG$  

•  $FEA$  

•  $\angle CEB$  

Multiple Choice

Using the image shown, name a pair of congruent angles.

•  $\angle AED\ and\ \angle CEB$  
  

•  $\angle FEC\ and\ \angle FEA$  
  

•  $\angle FEC\ and\ \angle AED$  
  

•  $\angle DEG\ and\ \angle AEC$  
  

Multiple Choice

Using the image correctly use the angle addition postulate

•  $\angle AEF\ +\ \angle FEC\ =\ \angle AEC$  
  

•  $m\angle AEF\ +\ m\angle FEC\ =\ m\angle AEC$   
  

•  $m\angle AEF\ +\ m\angle CEB\ =\ m\angle AEB$  
  

•  $m\angle AED=m\angle CEB$  
  

Multiple Choice

Using the image, what segment is bisecting  $\angle DEC$  ?

•  $\overline{FG}$  
  

•  $\overline{AB}$  
  

•  $\overline{AE}$  

•  $\overline{FB}$  
  

Multiple Choice

Name the property of equality that the statement illustrates.

If ∠K ≅ ∠B, then ∠B ≅ ∠K

• Symmetric Property of Congruence

• Definition of Congruence

• Definition of Angle Bisector

• Reflexive Property of Congruence

Multiple Choice

Name the property of equality that the statement illustrates.

∠G ≅ ∠G

• Symmetric Property of Congruence

• Definition of Congruence

• Reflexive Property of Equality

• Reflexive Property of Congruence

Multiple Choice

Name the property of equality that the statement illustrates.

If ∠A≅∠B and ∠B≅∠C, then ∠A≅∠C

• Reflexive Property of Congruence

• Transitive Property of Congruence

• Definition of Congruence

• Symmetric Property of Congruence

Multiple Choice

If you know A and B are both right angles, what can you state next? (Use what you know about the def of right angles)

•  $m\angle A+m\angle B=90$  

•  $m\angle A=90,\ and\ \ m\angle B=90$  

• Transitive Property

•  $m\angle A=45\ and\ m\angle B=45$  

Multiple Choice

What is the right angle congruence theorem?

• All angles are right angles.

• All right angles are 90 degrees.

• All right angles are congruent.

Multiple Choice

If

 $m\angle1\ and\ m\angle2\$  are supplementary, what can I state next?

•  $m\angle1\ and\ m\angle2$  are supplementary

•  $m\angle1+m\angle2=180$  

•  $m\angle1=90\ and\ m\angle2\ =\ 90$  

•  $m\angle1+m\angle2=90$  

Multiple Choice

Solve for x

• 15
• 16
• 18
• 19

Multiple Choice

What is the value of x?

• 37
• 72
• 108
• 18

Multiple Choice

Find what the value of x.

• 118
• 108
• 28
• 58

Multiple Choice

Name the vertical angle to
∠h.

• ∠f
• ∠i
• ∠g
• ∠j

Multiple Choice

Which are pairs of vertical angles?

• ∠COB & ∠COA
• ∠AOD & ∠AOC
• ∠COB & ∠AOD
• ∠BOD & ∠AOD