Angles, arcs and sectors

1003023109

Level: 
A
Select such a pair of angles \( \alpha \), \( \beta \) that do not take the same position on the unit circle.
\( \alpha= 129^{\circ};\ \beta=859^{\circ} \)
\( \alpha= 575^{\circ};\ \beta=2015^{\circ} \)
\( \alpha= \frac23\pi;\ \beta=\frac{14}3\pi \)
\( \alpha= \frac54\pi;\ \beta=\frac{29}4\pi \)

1003023108

Level: 
A
Select a pair of angles \( \alpha \), \( \beta \), that take the same position on the unit circle?
\( \alpha = \frac23\pi;\ \beta=-\frac43\pi \)
\( \alpha = \frac65\pi;\ \beta=\frac45\pi \)
\( \alpha = -\frac76\pi;\ \beta = -\frac{32}6\pi \)
\( \alpha=-\frac23\pi;\ \beta=\frac{31}3\pi \)

1103023107

Level: 
A
Which of the angles \( \alpha \), \( \beta \), \( \gamma \), \( \delta \) takes the same position on the unit circle as the angle \( APB \)?
\( \gamma = 4.18\,\mathrm{rad} \)
\( \beta = 7.32\,\mathrm{rad} \)
\( \alpha = -7.32\,\mathrm{rad} \)
\( \delta = -4.18\,\mathrm{rad} \)

1003023105

Level: 
A
Select such a pair of numbers that represents measures of two coterminal angles. (Two angles are coterminal if when they are drawn in the standard position their terminal sides merge.)
\( -21.5\pi;\ -41.5\pi \)
\( -21.5\pi;\ 21.5\pi \)
\( -21.5\pi; 41.5\pi \)
\( 21.5\pi;\ -41.5\pi \)

1003023104

Level: 
A
Select such a pair of numbers that represents measures of two coterminal angles. (Two angles are coterminal if they are drawn in the standard position and both have their terminal sides in the same location.)
\( \frac{15}2\pi;\ -8.5\pi \)
\( -21.5\pi;\ -\frac92\pi \)
\( \frac{19}2\pi;\ 20.5\pi \)
\( \frac{35}2\pi;\ -\frac{35}2\pi \)