What is the reference angle? Trigonometry Right Triangles Trigonometric Functions of Any Angle 1 Answer 语嫣 Yu Yan · Stefan V. Aug 7, 2018 Well, the reference angle is the angle [the one which is the smallest] between the x-axis and the terminal side. Happy to Help:} Answer link Related questions How do you find the trigonometric functions of any angle? How do you use the ordered pairs on a unit circle to evaluate a trigonometric function of any angle? What is the reference angle for 140^\circ? How do you find the value of cot 300^@? What is the value of sin -45^@? How do you find the trigonometric functions of values that are greater than 360^@? How do you use the reference angles to find sin210cos330-tan 135? How do you know if sin 30 = sin 150? How do you show that (costheta)(sectheta) = 1 if theta=pi/4? How do you use the unit circle to find values of cscx, secx and cotx? See all questions in Trigonometric Functions of Any Angle Impact of this question 17962 views around the world You can reuse this answer Creative Commons License