Answer:
x = 39°
Explanation:
The sum of the 3 angles in a triangle = 180°
To find x, subtract the sum of the 2 marked angles from 180
x = 180° - (39 + 102 )° = 180° - 141° = 39°
x=39
The angles inside of a triangle are all meant to equal 180. Therefore you would add 102 and 39 together to get 141. You would then subtract this number from 180 to get 39.
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