Question 1155675
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In this site,  there are two lessons, closely related to this problem

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Angles/Angles-basics.lesson>Angles basics</A> 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Points-lines-and-rays/Solved-problems-on-supplementary-and-complementary-angles-and-pairs-of-angles.lesson>Solved problems on supplementary and complementary angles</A>

in this site.


They contain &nbsp;<U>the theory</U>  &nbsp;and  numerous &nbsp;<U>examples</U> of solved problems of this type &nbsp;(your &nbsp;TEMPLATES)</U>. 


These lessons are written specially for you.


After reading these lessons you will tackle such problems very easy on your own, &nbsp;without asking for the help from outside.


Consider them as your textbook, &nbsp;handbook, &nbsp;tutorials and &nbsp;(free of charge) &nbsp;home teacher.