It is an angle measuring 30 degrees. But such an angle does not have a specific name.
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No special type, and so without a special name.
yes. the supplement adds to the acute angle to make 180 degrees. An acute angle is less than 90 degrees. Example: acute angle is 30 degrees. 180-30 is 150, which is obtuse.
150
A 150 degree angle is an obtuse angle because it is greater than 90 but less than 180 degrees
Angle C = 50 degrees. ------------------------------- A triangle equals 180 degrees. 60.5 + 69.5 = 150 180-150 = 50.