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PPPPLLLLLLSSSS I NEEED HELP

PPPPLLLLLLSSSS I NEEED HELP-example-1

1 Answer

8 votes

Answer:

x=63

Explanation:

The two interior angles add up the the exterior angle, so 51+x+12=2x. From there, solve to get x=63. Hope this helped!

User Thomas Sauvajon
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