Finding the Third Angle of a Triangle

Easy Geometry Lines And Angles

In a triangle, if one of the interior angles measures $$50^{\text{°}}$$ and another interior angle measures $$70^{\text{°}}$$, what is the measure of the third interior angle?

Recall that the sum of the interior angles in a triangle is always $$180^{\text{°}}$$.

$$60^{\text{°}}$$

$$70^{\text{°}}$$

$$80^{\text{°}}$$

$$90^{\text{°}}$$

Hint

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