Coterminal Angles
These triangles are used to create the first quadrant of the unit circle.
What are 30-60-90 triangles and the 45-45-90 triangles?
130 degrees to radians
What is 13pi/18
The negative coterminal angle for this angle is -pi/6
What is 11pi/6
the reference angle for 7pi/3 radians.
What is pi/3 radians = 60 degrees
What is the cos(135)?
What is sqrt(2)/2?
The sin(30)
What is 1/2?
1 radian in degree form.
What is 57.3 degrees?
This angle has a positive coterminal angle of 13pi/6 and a negative coterminal angle of -330 degrees. (give in both radians and degrees.)
What is pi/6 or 30 degrees?
The reference angle for -820 degrees.
What is 80 degrees?
The value for tan(45)?
What is ONE
the sin(-150)
What is -1/2?