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Please help - Multiple Choice!

Please Help Multiple Choice class=

Sagot :

Answer:

19) x=21

20) x=22

21) m∠1=70°

Step-by-step explanation:

19)

[tex]5x+75=180[/tex]

[tex]5x=105[/tex]

[tex]x=21[/tex]

20)

[tex]90+68+x=180[/tex]

[tex]x+158=180[/tex]

[tex]x=22[/tex]

21)

Because ∠1 and ∠3 are vertical, they are also congruent.

m∠3=m∠1=70°