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matrenka [14]
3 years ago
9

5. Find the value of x.

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
8 0

Answer:

x = 70

Step-by-step explanation:

Interior angles of a 4 sided shape = 360

80+70 = 150

360-150 = 210

210/3 = 70

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