What is the value of sin 30°?
1/2
1
√2/2
√3/2
What is the value of cos 60°?
1/2
√3/2
0
1
What is the value of tan 45°?
1/2
1
0
√3
What is the value of sin 120°?
1/2
√3/2
-√3/2
-1/2
What is the value of cos 180°?
0
-1
1/2
1
If sin α = 1/2 and α is an acute angle, what is α?
30°
45°
15°
60°
What is the value of tan 135°?
1
0
-1
√3
What is the value of sin 90°?
1/2
1
-1
0
What is the value of cos 150°?
-1/2
-√3/2
1/2
√3/2
What is the sign of the sine value for an angle in the second quadrant?
Equal to 0
Positive
Negative
Cannot be determined