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Anna11 [10]
3 years ago
11

PLEASE HELP!! OFFERING ALL MY POINTS! "Use the Triangle Sum Theorem to find the measure of each angle in degrees." for the 1st p

icture. for the second it is "Use the Exterior Angle Theorem to find the measure of each angle in degrees." MY GRADE IS BEING AFFECTED BY THIS PLEASE HELPPP

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
7 0

Step-by-step explanation:

12x+1+3x+16x-7=180

31x=186

x=6

10x+6x-3+39=180

16x=144

x=9

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