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					2.8 Proving Angle
Relationships
   < Add Post – If R is in int of <PQS
                <PQR + <RQS = <PQS.




Example – find x:




         48
   Supp Thm – If 2 <s form linear prs 
    they’re supp.

   Comp Thm – If 2 <s form rt <  they’re
    comp.

   Example – Find <1 & <2:


           1   2
   Thm 2.6 - <s supp to same < (or to     <s) are 


   Thm 2.7 - <s comp to same < (or to  <s) are   


   Thm 2.8 – If 2 <s are vert <s    

 Thm 2.9 -  lines intersect to form _______.
 Thm 2.10 – all rt <s are 
 Thm   2.11 -   lines form  adj <s

 Thm   2.12 – If 2 <s  & supp  each is rt
 <.

 Thm   2.13 – If    <s form linear pr  each
 is rt <.
                            R
   Example                      T

Given: <RSW  <TSU                  W
Prove: <RST  <WSU   S
                                    U

 Statements              Reasons
Assignment

     2.8 worksheet

				
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