Cecelol
Cecelol
05-12-2017
Mathematics
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CeeSosa
CeeSosa
05-12-2017
if you add the angles of a triangle, your sum should always be 180°
70° + 80° + x° = 180°
150° + x = 180°
subtract 150 from both sides of the equation.....
150° + x = 180°
-150 -150
x = 30
your answer is 30°
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