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NGMS
LESSONS: 
* calculator link 

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Hinge Theorem ("triangle inequaltiy in two triangles", theorems, examples) 

PRACTICE: 
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REFRESHERS: (while these topics are mostly "review", you may also find new information here) 
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Segments (definition, Ruler Postulate, Segment Addition Postulate, midpoint, bisector) 
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Pairs of Angles (adjacent, linear pair, vertical, complementary, supplementary, theorems) 
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Working with Angles (Angle Addition Postulate, bisect angle, angles about a pt, angles on a line) 
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