Geometry: An Interactive Journey to Mastery

Solutions

7. ,IWKHPHDVXUHRIHDFKFRQJUXHQWDQJOHLVxWKHQx + x JLYHVx ƒ


8. D௘ͽ (DFKLQWHULRUDQJOHRIDUHJXODUKHSWDJRQKDVPHDVXUH | 7 ƒ 1RQHHTXDOƒVRWKH
   answer is no.
   E௘ͽ <HV'UDZRQHDQJOHRIƒDQGLQFOXGHLWDVSDUWRIVRPHVHYHQVLGHGVKDSH


9. Let N be the number of sides of the polygon.

(^7) x 2 x
Figure S.4.4
:HKDYHx VRx 7KHH[WHULRUDQJOHLVx 
N  shows that the number of sides is N = 9.

10. Let N be the number of sides of the polygon.
       
      
      
     

N

N

N

N

d d

dd

dd

dd

:HPXVWKDYHN