Answer:
[tex] \frac{11\pi}{30} [/tex]
Step-by-step explanation:
The reference angle is an acute angle that angle in standard position makes with the positive x-axis.
The given angle in radians is
[tex] \frac{11\pi}{30} [/tex]
This angle is already acute and hence it is itself a reference angle.
The reference angle of any angle in the first quadrant is the same angle.
