Reference Angles
360-angle
What is the reference angle in Quadrant 4
2
Csc 30 and sec 60
Root 2
Csc 45 and sec 45
2 root 3/ 3
Csc 60 and sec 30
2x
Hypotenuse length of a 30, 60, 90 triangle
X
Side length across from the 30 in a 30, 60 ,90 triangle
X root 3
Side length across from the 60 in 30, 60, 90 triangle
1/2
Sin 30 and Cos 60
Root 2/2
Sin 45 and cos 45
Root 3/2
Sin 60 and cos 30
Root 3/3
Tan 30 and cot 60
1
Tan 45 and cot 45
Root 3
Tan 60 and cot 30
X,x, x root 2
What are the side lengths of a 45, 45, 90 triangle
180-angle
What is the reference angle in Quadrant 2
Angle-180
What is the reference angle in Quadrant 3
Itself
What is the reference angle in Quadrant I