Chapter 5.3, Problem 7CVC

Fill in each blank so that the resulting statement is true.

Complete each statement for a positive angle $\theta$ and its reference angle $\theta$

'.

a. If ${90}^{\circ }<\theta <{180}^{\circ }$, then $\theta$

' =________.

b. If ${180}^{\circ }<\theta <{270}^{\circ }$, then $\theta$

' =_______

c. If ${270}^{\circ }<\theta <{360}^{\circ }$, then $\theta$

' =________.