An acute angle
Also, 57.296 degrees is equal to 1 radian.
360 degrees is equal to 2 pi radians.
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Answer = A 180 degree angle is called a Straight Angle!!
what is a 90 degree angle called
A 140 degree angle would be called an obtuse angle.
A right angle
In a right angle triangle, the line across from the riht angle is called the hypotenuse.