On a piece of paper, use a protractor to construct a triangle with angle measures of 50° and 70º. what is the measure of the third angle? 60° 80° 100° 180°

Using the theorem for the sum of the interior angles of a triangle, the measure of the third angle would be 60°

Given the Parameters :

Recall :

A + B + C = 180° (Sum of the interior angles of a triangle)

50 + 70 + C = 180

120 + C = 180

C = 180 - 120

C = 60°

Hence, the measure of the third angle is 60°

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the 3 angles of a triangle need to equal 180 degrees

 50 +70 = 120

180 - 120 = 80

 the 3rd angle = 80 degrees

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step-by-step explanation: