Because 90 degrees is half of a straight line. A straight line is equal to 180 degrees. 180 divided by 2 = 90.
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yes, 90 degrees is a right angle.
There are 90 degrees in a right angle.
Yes - a right angle is an angle of 90 degrees.
A 90-degree angle is commonly called a right angle.
A right angle is a 90 degrees angle.