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Mathematics 9 Online
OpenStudy (anonymous):

what does cpctc represent and when would you use it

OpenStudy (jonnyvonny):

http://www.youtube.com/watch?v=CgtYgvb0nHU I doubt its hyperlinked, but it contains VERY helpful information.

OpenStudy (nikato):

Congruent parts of congruent triangles are congruent. After u prove 2 triangles are congruent, u can use CPCTC as a reason why a side or angle of one is congruent to the other one

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