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xz_007 [3.2K]
2 years ago
14

PPPPLLLLLLSSSS I NEEED HELP

Mathematics
1 answer:
Nuetrik [128]2 years ago
7 0

Answer:

x=63

Step-by-step 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!

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