fill in the unit circle
what is no. 1 on the blank unit circle
pi over 2
(x-h)² + (y-k)² > r²
OUTSIDE the circle
what is one radian equal to?
180/pi
Positive Angles are measured...?
counter clockwise
what is the abreviation for the quadrants?
ASTC, all strippers take cash
what is no. 2 on the blank unit circle
210 degrees
(x+2)2 + (y+3)2 = 17
what is the center?
-2,-3
75 degrees into radians
5 pi over 12
what is the reference angle for 120 degrees
60 degrees
sine of 180
0
what is no. 3 on the blank unit circle
root 3 over 2, -1 over 2
(7,9) and (-5,-7) in standard form
(x-1)2 +(y-1)2=100
5 pi over 6 into degrees
150 degrees
what is the reference angle for 210
30
cos of 60
1/2
what is no. 4 on the blank unit circle
4 pi over 3
x2+y2+4x-10y+13=0
center? Radius?
center (-2,5) , radius: square root 16 = 4
315 degrees into radians
7 pi over 4
what is the reference angle for 300
60
tan 135
-1
what is no. 5 on the blank unit circle
root -3 over 2, 1 over 2
write the equation of a circle with the center (2,-3) and the radius 20 in general form
x2+y2-4x+6y-7=0
27 pi over 15 to degrees
324 degrees
what is the reference angle for 7 pi over 6
pi over 6
cos 225
- square root 2/2