Converting Degrees to radians
Convert 215 degrees to radians. Leave answer as a reduced fraction.
(43 pi)/36 radians
7pi/6 convert to degrees
210 degrees
Without using the unit circle find the exact value Cos (30)=?
sqrt(3)/2
Find the reference angle for 135 degrees
180-135= 45 degrees
Convert 180 degrees to radians.
pi radians
9pi/ 6 to degrees
270 degrees
Without using the unit circle find the exact value Sin (45)= ?
sqrt ( 2)/ 2
This acronym for finding sides and angles can only be used in right triangles.
What is SOHCAHTOA?
The ______________ ___________________ of the angle is located directly on the x-axis.
Initial side.
330 degrees to radians
11 (pi)/ 6 radians
3 pi/ 6 to degrees is?
90 degrees
Without using the unit circle find the exact value of tan (180)
0
Find the reference of 345 without a calc.
360-345=15
What does the x represent what trig function in the unit circle?
cos(theta)
Convert 270 degrees to radians
What is (3 pi/ 2) radians
12pi/6 to degrees is?
360
Find the exact value of cos (210)
-sqrt(3)/ 2
This trig rule is used in triangle questions involving three sides and one angle.
What is the cosine rule?
When finding the exact value of tan (theta)... what steps do you do.
y/x
With out a calculator 33 degrees converted to radians is what? Answer must be a reduced fraction.
11 pi / 60 radians
5 pi/12 without a calculator
75 degrees
Find the exact value of tan ( 11 pi/ 6).If there is a square root in the denominator then it needs to be rationalized.
-sqrt(3)/ 3
Find a positive coterminal angle and a negative coterminal angle. for 90 degrees and 240 degrees.
90-> 450, -270
240-> 600, -120
In Quadrant 4 of the unit circle
x-> what value sign?
y-> what value sign?
Tan (theta)-> What value sign?
x-> positive
y->negative
Tan (theta)-> negative