Question

find the value of the unknown angles in the following figures.
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Answer 1

Answer:

70 degrees

Step-by-step explanation:

40 + 2x = 180

2x = 180 - 40 = 140

x = 140/2 = 70

Answer 2

Answer:

x+x+40=180 (sum of interior angles of triangle=180)

2x=140

x=70