圓的性質(一）

 $50\degree$  

 $40\degree$  

 $90\degree$  

 $30\degree$  

x = 9, y = 18

x = 18, y = 9

x = 9, y = 20

未有足夠資料求 x 和 y

10

14

16

18

13cm

12cm

$\sqrt{601}$ cm

17cm

12cm

24cm

14cm

26cm

$23\degree$

$44\degree$

$46\degree$

$15.3\degree$

x = $206\degree$ , y = $77\degree$   

x =  $26\degree$ , y = $77\degree$   

x = $206\degree$ , y = $103\degree$  

x =  $146\degree$ , y = $73\degree$   

f = $30\degree$ , g = $50\degree$   

f = $30\degree$ , g = $60\degree$  

f = $20\degree$ , g = $90\degree$   

f = $20\degree$ , g = $50\degree$   

$30.5\degree$

$61\degree$

$32\degree$

$64\degree$

$108\degree$

$72\degree$

$144\degree$

$36\degree$