Lesson on Logic Statements and Proofs in Geometry

Angles  a and e are what type of angles?

• Vertical Angles
• Corresponding Angles
• Alternate Interior Angles
• Alternate Exterior Angles

Tags

CCSS.8.G.A.5

Angles  e and d are what type of angles?

• Vertical Angles
• Corresponding Angles
• Alternate Interior Angles
• Alternate Exterior Angles

Tags

CCSS.8.G.A.5

Fill in the missing proofs.

• Transitive Property, SAS(Side-Angle-Side)
• Reflexive Property, SAS(Side-Angle-Side)
• Reflexive Property, Vertical Angles Thm.
• Transitive Property, SSS(Side-Side-Side)

Tags

CCSS.HSG.SRT.B.5

• Transitive Property, SAS(Side-Angle-Side)
• Reflexive Property, SAS(Side-Angle-Side)
• Transitive Property, SSS(Side-Side-Side)
• Reflexive Property, SSS(Side-Side-Side)

Tags

CCSS.HSG.SRT.B.5

What is the "statement" for step 3 of the proof? 

• ∡EDA≅∡DCB
• ∡AED≅∡BEC
• DE=CE
• ∡AED≅∡CED

Tags

CCSS.HSG.SRT.B.5

What is the "reason" for step 4 of the proof?

• proof
• AAS
  ≅ Thrm
• ASA
  ≅ Thrm
• SAS
  ≅ Thrm

Tags

CCSS.HSG.SRT.B.5

What is the "statement" for step 2 of the proof?

• ∆BAC≅∆DAC
• BC=DC
• ∡B≅∡D
• ∡BAC≅∡DAC

Tags

CCSS.HSG.CO.C.9

What is the "reason" for step 4 of the proof?

• SAS
  ≅ theorem
• ASA
  ≅ theorem
• SSA
  ≅ theorem
• CPTCT
   theorem

Tags

CCSS.HSG.SRT.B.5

What is the "reason" for step 5 of the proof?

• Vertical Angle Theorem
• proof
• def. of angle bisector
• CPCTC Theorem

Tags

CCSS.HSG.SRT.B.5

What is the "statement" for step 3 of the proof?

• AD=DA
• AD=AD
• HD=ND
• HD=DN

Tags

CCSS.HSG.SRT.B.5