+0  
 
-2
333
2
avatar+2980 

Help.

NotSoSmart  Apr 3, 2017
 #1
avatar+88826 
+3

Unsure about (1), but here's (2)

 

The measure of C   =  (1/2) the difference of the arcs intercepted by the two secants......so....

 

C = (1/2) (100 - 30)   =  (1/2)(70)   =  35°

 

 

 

cool cool cool

CPhill  Apr 3, 2017
 #2
avatar+7266 
+3

I am pretty sure that the only false statement is

3. Every chord is a diameter.

hectictar  Apr 3, 2017

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