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On a piece of paper, use a protractor to construct a triangle with angle measures of 30° and 50º. What is the measure of the third angle? 1. 60° 2. 80° 3. 100° 4. 180°

On a piece of paper, use a protractor to construct a triangle with angle measures of 30° and 50º. What is the measure of the third angle? 1. 60° 2. 80° 3. 100° 4. 180°
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3 votes
On a piece of paper, use a protractor to construct a triangle with angle measures of 30° and 50º. What is the measure of the third angle?

1. 60°
2. 80°
3. 100°
4. 180°

User Smedegaard
by
8.3k points

2 Answers

4 votes
100
50+30=80 you need 180 to have a full triangle so it would be 100
User Utoah
by
8.2k points
4 votes
Sum of the angles of a triangle is 180 degrees.
User Daniel Centore
by
8.4k points
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