A straight angle is an angle equal to radians.
Two right angles make a straight angle, and two straight angles make a full angle.
A straight angle is an angle equal to radians.
Two right angles make a straight angle, and two straight angles make a full angle.
Weisstein, Eric W. "Straight Angle." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/StraightAngle.html