19.3

56

46

11.5

 $\frac{80}{89}$  

 $\frac{80}{89}$  

 $\frac{39}{80}$  

 $\frac{89}{80}$  

origin, one

radius, 2 pi

(10,10), two

(0,0), pi

(0,0)

(1,1)

$\left(\sin\theta,\ \cos\theta\right)$

$\left(\cos\theta,\ \sin\theta\right)$

1

0

-1

undefined

$\frac{33}{65}$

$-\frac{33}{65}$

$\frac{56}{65}$

$-\frac{56}{65}$

$-\frac{8}{15}$

$-\frac{15}{8}$

$\frac{8}{15}$

$-\frac{8}{15}$

3.14

360

6.28

720

$2$

$10$

$\pi$

$2\pi$

180

45

360

57

$2.3\pi$

$\pi$

0.6

1948

102

$0.03\pi$

0.03

$0.56\pi$

3.9

$\frac{5\pi}{4}$

12,892

$\frac{7\pi}{3}$

309

35.7

1.83

105

3 cm

$15\pi\$ cm

9.4 cm

32 cm

0.07 rad

0.23 rad

3.14 rad

4.2 rad

$117\degree$

$297\degree$

$-63\degree$

$63\degree$

$77\degree$

$\frac{17\pi}{7}$

$797\degree$

$\frac{3\pi}{7}$

$45\degree$

$135\degree$

$225\degree$

$-45\degree$

$\frac{5\pi}{9}$

$\frac{14\pi}{9}$

$\frac{4\pi}{9}$

$-\frac{5\pi}{9}$

$163\degree$

$253\degree$

$17\degree$

$197\degree$

$\frac{13\pi}{10}$

$\frac{17\pi}{10}$

$\frac{3\pi}{10}$

$\frac{17\pi}{20}$