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STatiana [176]
3 years ago
13

Please 16-20. I really have no clue how to do it. Please step by step.

Mathematics
1 answer:
marishachu [46]3 years ago
8 0
16. 40°
17.125°
18.135°
19. x=96°    2x-50=142°    x+40=136°    x+20=116°
20. x=25°    x+40=65°       2x+20=70°    3x=75°             6x=150°

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