?

Trigonometry

Free Version

Upgrade subject to access all content

Moderate

Unit Circle: Reference Angle in Radian Measure

TRIG-4YGEXI

Find the exact value of the reference angle, in radian measure, of the given angle $ \cfrac { 7\pi }{ 12 }$.

A

$ \cfrac { 5\pi }{ 12 }$

B

$ \cfrac { 17\pi }{ 12 }$

C

$ \cfrac { 19\pi }{ 12 }$