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Mathematics 11 Online
OpenStudy (anonymous):

Would anyone be willing to help me with a math question?

OpenStudy (anonymous):

do u want us to check it

OpenStudy (anonymous):

This is Geometry im assuming

OpenStudy (anonymous):

between C and D, but i think its D

OpenStudy (mathstudent55):

This is up to drawing diagonal AC. Now let's see the steps after the blank to see what parts of the triangles the proof is using to prove the triangles congruent. |dw:1445969548967:dw|

OpenStudy (anonymous):

She just asked if it was right dude so if it is, say yes. If it ISNT then explain

OpenStudy (mathstudent55):

Angles BCA and DAC are congruent by alternate interior angles of parallel lines. |dw:1445969695994:dw|

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

im at school so i may have to go but for right now im good

OpenStudy (mathstudent55):

We are told angles BCA and DAC are congruent by the same reason the blank statement is congruent, so we know we need two angles congruent by alt int angles of parallel lines.

OpenStudy (anonymous):

lol ikr ikr

OpenStudy (mathstudent55):

This pair of angles is what is needed, so the blank is this pair of angles is congruent by alt int angles of parallel lines. |dw:1445969805925:dw|

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