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29-12-2020
Mathematics

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I need the measure of angle 1

I need the measure of angle 1 class=

Respuesta :

29-12-2020

Answer:

Angle 1 is 69°

Step-by-step explanation:

9x + 66 = -9x + 156

9x + 9x = 156 - 66

18x = 90

18x/18 = 90/18

x = 5

-9x + 156

-9(5) + 156

-45 + 156

111

180 - 111 = 69.

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