Verified Answer :

Slushie

All three angles on a triangle always equal 180°.
Example: 100°+40°+40°=180°

102+39=141°
180-141=39°
x = 39°










jenniferjr2000

When you add up all the angles it should equal to 180 so 180-102=78 then 78-39=39 so x=39

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