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anonymous
 one year ago
Geoffrey wrote the following paragraph proof showing that rectangles are parallelograms with congruent diagonals.
anonymous
 one year ago
Geoffrey wrote the following paragraph proof showing that rectangles are parallelograms with congruent diagonals.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0According to the given information, quadrilateral RECT is a rectangle. By the definition of a rectangle, all four angles measure 90°. Segment ER is parallel to segment CT and segment EC is parallel to segment RT by the Converse of the SameSide Interior Angles Theorem. Quadrilateral RECT is then a parallelogram by definition of a parallelogram. Now, construct diagonals ET and CR. Because RECT is a parallelogram, opposite sides are congruent. Therefore, one can say that segment ER is congruent to segment CT. Segment TR is congruent to itself by the Reflexive Property of Equality. The _______________ says triangle ERT is congruent to triangle CTR. And because corresponding parts of congruent triangles are congruent (CPCTC), diagonals ET and CR are congruent.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Can someone please check to see if its correct?

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2You say side angle side theorem right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes, but i think im wrong.

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2hm... So what's your final decision?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think is that one but im not sure, i just need help to understand it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Like explaining to me

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2ok let's mark what's in Geofrey's proof in the diagram... Can you do it for me?dw:1440103234043:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It states that Segment ER is parallel to segment CT and segment EC is parallel to segment RT

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2just click on the right top corner pencil of the diagram I just posted... You can mark the data yourself..

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2It would be fun. Believe me!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440114097646:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sorry for the mess i was trying to make it dark enouugh.

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2Geoffrey says that segment ER is congruent to segment CT. Can you mark that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440114349257:dw

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2And segment TR is congruent for itself... I'll mark that for you... or would you like to mark it yourself?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I could do it if you want

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440114527163:dw

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2So now we have this:dw:1440103862809:dw

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2I've shown that ER=CT by putting one line over them and RT=RT by putting two lines... Did you get that?

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2Now we have to show that ET=RC. So what are the congruent triangles we have to consider?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0EC and RT? i really dont know.

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2EC and RT are line segments. Now our goal is to show that ET=RC right?

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440104396426:dw

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2Very well... To show that what are the triangles we've to consider? Have a guess ;)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0We have to prove the congruence?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I was so nervous answering that.

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2look at what we've marked so far... you've to just tell me congruent triangles.... !!!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay let me figure it out

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Was my first answer correct?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you so much for your help!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got it right in my test! thanksss

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440105512532:dw

amilapsn
 one year ago
Best ResponseYou've already chosen the best response.2Don't be frightened to do mistakes... :)
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