What is a non quadrantal angle?

Answer 1

A quadrantal angle is one that in 0 degrees, 90 degrees, 180 degrees, 270 degrees or 360 degrees (the last one being the same as 0 degrees). These are the angles formed by the coordinate axes with the positive direction of the x-axis. All other angles (in the range 0 to 360 degrees) are non-quadrantal

Answer 2

A non-quadrantal angle is an angle that is not a multiple of 90 degrees. In other words, it is an angle that falls between 0 and 360 degrees but is not exactly 0, 90, 180, or 270 degrees. Non-quadrantal angles are commonly measured in degrees, radians, or gradients, depending on the context. Understanding non-quadrantal angles is essential in trigonometry and other branches of mathematics where angles play a crucial role in calculations and problem-solving.