3 years ago

Plzzz help me i can not find it nowhere

Mathematics

1 answer:

ratelena [41]3 years ago

6 0

Answer: D. 50

Step-by-step explanation:

the sum of opposite angles of a cyclic quadrilateral are always 180 degrees

80 +2x= 180

2x= 180 - 80

x= 100/2

x= 50

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