Cos, Sin, and Tan
Finding Co-terminal Angles
Unit Circle
100

If sin x =4/5 in quadrant 1, what is cos of x? 

What is cos x =3/5.

100

What is the first negative angle you find for 180 degrees?

What is -180 degrees

100

What is the angle for point (-1,0)?

What is 180 degrees. 

200

If cos  x =3/5 in quadrant 1, what is tan of x?

What is tan x =4/3.

200

What is the first positive co-terminal angle for 120 degrees? 

What is 480 degrees.

200

What is the plotting point for 270 degrees?

What is (0,-1).

300

If tan x =5/-12 in quadrant 2, what is cos x?

What is cos x =-12/13.

300

What is the first negative angle you find for 315 degrees?

What is -45 degrees.

300

What is the radian for 90 degrees?

What is pi/2.

400

If sin x= -4/5 in quadrant 3, what is tan of x?

What is tan x=-3/-4

400

What is the first negative co-terminal angle for 129 degrees?

What is -231 degrees. 

400

What is the plotting point for 45 degrees? 

What is (the square root of 2 over by 2, the square root of 2 over by 2).

500

If cos x= -5/13 in quadrant 4, what is sin x?

What is sin x=12/13.

500

What is the first positive and negative co-terminal angle for 257 degrees?

What is 617 degrees and -103 degrees. 

500

What is the radian and plotting point for the angle 330 degrees. 

What is 11pi/ 6 and (the square root of 3 over 2, negative 1 over by 2).