An angle of 90 degrees is a right angle
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It is an agle that is less than 90 degrees
An obtuse angle is greater than 90 degrees but less than 180 degrees.
90 degrees 90 degrees
90 - 18 = 72 degrees.90 - 18 = 72 degrees.90 - 18 = 72 degrees.90 - 18 = 72 degrees.
Yes. Because 90+90 = 180 degrees. Yes. Because 90+90 = 180 degrees. Yes. Because 90+90 = 180 degrees. Yes. Because 90+90 = 180 degrees.