2 angles that equal more than 90 degrees when added
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Two angles whos sum equals ninety degrees
draw 2 angles that add up to 180 degrees
to find missing angles you are dealing with complementry and suplementry angles. Suplementry angles add up to 180 degrees so you must subtract what given angle you have from 180 and you come up with youre missing angle. This rule also gos for complementry but the angles must add up to 90 degrees
They do if they are added ... placed together so that their vertexes and one side of each angle coincide. That's the definition of complementary angles.
79 degrees