two angle of atringle measure 60 &40 respectively .find the measure of the third angle all step
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10 it will be the answer hope it will help you
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The total of three angles of a triangle is 180°
the first two angles are 60 and 40
> 60 + 40 + x = 180
> 100 + x = 180
> x = 180 - 100
> x = 80
therefore the third angle is 80°
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