Question

write the properties used ​

Answer 1

Answer:

it is 120

Step-by-step explanation:

180-60

120

x=120

Answer 2

Answer:

according to property that

some of the angles on line is 180°

one angle is 60 degree

other angles equal to 120 degree (X)

Step-by-step explanation:

180°-60°

=120°

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