Introduction to Proof Answers

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Which are linear pairs? Check all that apply.

∠DAE and ∠EAD

∠BAC and ∠CAD

∠BAE and ∠EAD

∠EAD and ∠DAC

∠CAE and ∠BAD

x =

14.5

21.5

m∠DEA = °

39.5

140.5

m∠AEB = °

39.5

140.5

172

Which are vertical angles? Check all that apply.

∠EAB and ∠BAC

∠EAB and ∠CAD

∠CAD and ∠FAE

∠CAB and ∠DAE

∠DAC and ∠DAE

What is the numerical sum of the degree measures of ∠DEA and ∠AEB? | What are the numerical measures of the angles? | x = | m∠DEA = ° | m∠AEB = °

180

360

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