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Mathematics 19 Online
OpenStudy (itrymath):

hi look below!!!

OpenStudy (itrymath):

The following is an incomplete two-column proof that rectangle ABCD is a parallelogram with congruent diagonals: Statements Reasons m∠ DAB = 90° m∠ ABC = 90° m∠ BCD = 90° m∠ CDA = 90° Definition of a Rectangle Converse of the Same-Side Interior Angles Theorem Quadrilateral ABCD is a parallelogram Definition of a Parallelogram Draw and by Construction with a straightedge ∠ BAD ≅ ∠ CDA Definition of Congruence Reflexive Property of Equality ΔBAD ≅ ΔCDA Side-Angle-Side (SAS) Theorem Corresponding Parts of Congruent Triangles are Congruent (CPCTC) What statement and reason completes the proof? (4 points) ; Property of Parallelograms (opposite sides are congruent) BA congruent CD ; Corresponding Parts of Congruent Triangles are Congruent (CPCTC) ; Property of Parallelograms (opposite sides are parallel) ; Converse of the Alternate Interior Angles Theorem

OpenStudy (itrymath):

OpenStudy (brandonsinger):

Its B

OpenStudy (itrymath):

how

OpenStudy (brandonsinger):

I think its B

OpenStudy (itrymath):

@3mar @Seratul

OpenStudy (3mar):

Hello!

OpenStudy (itrymath):

hello

OpenStudy (itrymath):

i need help with this problem

OpenStudy (itrymath):

i think the answer is B

OpenStudy (3mar):

where the prob?

OpenStudy (itrymath):

OpenStudy (itrymath):

OpenStudy (itrymath):

@3mar

OpenStudy (3mar):

Well I am seeing it and try to get it.

OpenStudy (3mar):

Where is the point,, where is the question?

OpenStudy (itrymath):

OpenStudy (itrymath):

fill in the missing blanks

OpenStudy (3mar):

what you picked?

OpenStudy (itrymath):

B

OpenStudy (3mar):

where are a,b,c,d?

OpenStudy (itrymath):

OpenStudy (3mar):

ok let me see

OpenStudy (itrymath):

is it correct because if not then i think C

OpenStudy (3mar):

It would be A

OpenStudy (itrymath):

Waaaa?

OpenStudy (itrymath):

OOOOOOOOOOOOOOoo

OpenStudy (itrymath):

okay i get it!!!!

OpenStudy (3mar):

It si not B as we did not yet prove that these two triangles are congruent! and It is not C because we need to have two congruent sides not parallel. GOT iT ???

OpenStudy (3mar):

I hope I helped you.

OpenStudy (3mar):

I want you to be sure and ask if you are stuck to something! ok?

OpenStudy (itrymath):

nope i get it thanks!!!

OpenStudy (3mar):

@ItryMath Satisfied?

OpenStudy (itrymath):

yes

OpenStudy (3mar):

I am happy to hear that.

OpenStudy (3mar):

Do you want anything for now?

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