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anonymous
 one year ago
Please help I'm having a lot of trouble here!
A student made the table below to show the steps to prove that DC is equal to EC:
Statements Justifications
DC = EC
CPCTC
anonymous
 one year ago
Please help I'm having a lot of trouble here! A student made the table below to show the steps to prove that DC is equal to EC: Statements Justifications DC = EC CPCTC

This Question is Closed

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1the missing statement is: \[\Large m\angle ACE = m\angle ACD + m\angle DCE\] for angle addition postulate

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0omg okay thanks so much, now i have to explain why we needed this step

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0cam i say because DBC=Eac?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so without it we wouldn't be able to prove this?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1no, since the condition DBC= EAC is necessary nevertheless it is not suffice

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1my condition is necessary since we have: dw:1433462306474:dw then the two triangles are congruent each other

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1using ASA postulate

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay, but why would we use the same statement twice? the statement we have now is the same as statement 4

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1you are right! Then we can use directly this statement: \[\Large m\angle BCD = m\angle ACE\] by the transitive property of congruence relation

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ohhh! Okay, great! And we would need this step to simplify steps 46?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yaay! Thanks so much!
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