Geometry: An Interactive Journey to Mastery



10. Let A ͼ௘௘ͽDQGB ͼ௘x, x௘ͽ:HQHHGAB 
    
    
    
    
    
    
    



  

    



833

81649

449

4 7 or 7

11 or 3.

xx

xx

xx x x

xx

xx

xx

x

x

x





 









 



7KHUHDUHWZRSRLQWVWKDWZRUNͼ௘௘ͽDQGͼ௘íí௘ͽ

Lesson 7

1. 6HHFigure S.7.1.
     
   
     

mAIK

mGKF

mGKI

‘ 

‘

‘ 

2. 6HHFigure S.7.2.

A

B

C

D

E

G F

H

I

J

K

32

(^3288)
92
60
60
Figure S.7.1
x x
xx
x
x x
xx
x
x
x
Figure S.7.2