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Coterminal Angles
Reference Angles
Given a point...
Draw and angle
Degrees and Radians
100
This angle has a positive coterminal angle at 390 degrees and negative coterminal angle at -330 degrees.
What is 30 degrees
100
My initial angle is in standard position, while my terminal side lies on 330 degrees.
What is 30 degrees?
100
P(12, -5), find the six trigonometric values
Sin=-5/13 Cos=12/13 Tan=-5/12 Csc=-13/5 Sec=13/12 Cot=-12/5
100
-270 degrees
North
100
30 degrees to radians
What is pi/6 radians?
200
This angle has a positive coterminal angle at 210 degrees and a negative coterminal angle at -870 degrees.
What is -150 degrees?
200
My initial side is in standard position, while my terminal side is at -5pi/4.
What is pi/4?
200
P(-4, 3), find the six trigonometric values
Sin=3/5 Cos=-4/5 Tan=-3/5 Csc=5/3 Sec=-5/4 Cot=-5/3
200
405 degrees
45 in Q1
200
11pi/6 radians to degrees
What is 330 degrees?
300
The positive coterminal angle for this angle is 11pi/4
What is 3pi/4
300
the reference angle for 1000 degrees where the initial side is in standard position.
What is 80 degrees
300
P(-15, -8), find the six trigonometric values.
Sin=-8/17 Cos=-15/17 Tan=8/15 Csc=-17/8 Sec=-17/15 Cot=15/8
300
195 degrees
15 in Q3
300
128 degrees to radians
What is 32pi/45
400
The negative coterminal angle for this angle is -32pi/6
What is -4pi/3
400
the reference angle for 40pi/3 radians.
What is pi/3 radians = 60 degrees
400
P(-2, 7), find the six trigonometric values
Sin=7-/53 / 53 Cos= -2-/53 / 53 Tan=-7/2 Csc=-/53 /7 Sec= --/53 / 2 Cot=-2/7
400
3pi/4
pi/4 in Q2
400
1 degree to radians in decimal form.
What is 0.01745329252 radians
500
This angle has a positive coterminal angle of 13pi/6 and a negative coterminal angle of -390 degrees. (give in both radians and degrees.)
What is pi/6 or 30 degrees?
500
The reference angle for -8103 degrees
What is 3 degrees?
500
P(-9, -1), find the six trigonometric values.
Sin=--/82 /82 Cos=-9-/82 /82 Tan=1/9 Csc=--/82 Sec=--/82 /9 Cot=9
500
-15pi/3
West
500
32pi/4 radians to degrees
What is 1440 degrees?