newelluc000 newelluc000

11-11-2020
Mathematics

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what proofs should i use for all these steps?

what proofs should i use for all these steps class=

Respuesta :

aleeshasaji aleeshasaji

11-11-2020

Answer:

1, 2, 5, 12, 13

Step-by-step explanation:

∠1 = 90 is given, which is a right angle

∠3 = 90 as well because ∠1 and ∠3 are vertically opposite

∠3 = ∠8, because ∠1 and ∠8 are same side exterior angles, which are the same

Therefore ∠3 must be congruent to ∠8

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