Triangles
Angles
Exact Values Deg
Exact Values Rad
Unit Circle
100
Solve for the missing side length:
5
100
Find the reference angle of (5pi)/6
pi/6
100
Solve tan45
1
100
Solve sin(pi/6)
1/2
100
What is the radius of the unit circle?
1
200
Solve for the given side:
7
200
Convert (3pi)/4 radians to degrees
135 degrees
200
Solve tan90
undefined
200
Solve sin((3pi)/2)
-1
200
How many radians are in a full unit circle?
2pi
300
What is the Special Right Ratio for 30-60-90 triangles?
1-sqrt3-2
300
Convert 120 degrees to radians
(2pi)/3
300
At which angle theta on the unit circle is costheta=-1?
180
300
Solve tan((5pi)/3)
-sqrt3
300
In which quadrants is tangent positive?
Quadrants I & III
400
Solve for the angle measure:
56.25 degrees
400
Find a positive and negative coterminal angle to 225 degrees
585, -135
400
Solve sin(-660)
sqrt3/2
400
Solve tan(-(17pi)/6)
sqrt3/3
400
In which quadrant is (5pi)/4?
Quadrant III
500
Solve for the given side length:
10.39 (6sqrt3)
500
Find the positive coterminal angle of -(13pi)/4
(3pi)/4
500
At which 2 angles theta on the unit circle is sintheta=-1/2?
210, 330
500
At which 2 angles theta on the unit circle is costheta=-sqrt3/2?
(5pi)/6, (7pi)/6
500
Find all angles on the unit circle between 0 and 2pi with a reference angle of pi/6.
pi/6, (5pi)/6, (7pi)/6, (11pi)/6