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Let's say that the angles of this triangle is supplementary. So our equation will be: 80 + 60 + x = 180 Solve for x (80 + 60) 140 + x = 180 x = 180 - 140 x = 40 That is the measurement of the third angle. To check, just simply add the 3 and you'll get 180 - ericka janolo http://www.friednster.com/ekang03
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Earn +20 ptsQ: A triangle is 80degrees and 60 degrees what is the third angle?
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What is a 30 and 60 degrees triangle called?
The third angle is 90 degrees so it is right angle triangle.
What is a triangle with angles of 60 degrees and 30 degrees?
The third angle has to be 90 degrees so it would be a right angle triangle.
What is the triangle that has one angle is 40 degrees and a second angle is 50 degrees?
isoselles triangleImproved Answer:-The third angle has to be 90 degrees so it is a right angle triangle.
What is the measure of the third angle of a triangle if one angle measures 52 degrees?
The third angle is (128 degrees) minus (the second angle).
What is the measure of the third angle of a triangle is one angle measures 126.5 degrees and the other measures 19 degrees?
The third angle is 34.5 degrees
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