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Rainbow [258]
3 years ago
13

Can someone help me pls !!!

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
4 0

Answer:

A

Step-by-step explanation:

The opposite angles of the quadrilateral are supplementary, thus

x + 10 + 70 = 180

x + 80 = 180 ( subtract 80 from both sides )

x = 100 → A

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