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Mathematics 19 Online
ILovePuppiesLol (ilovepuppieslol):

http://prntscr.com/d3x2p6

ILovePuppiesLol (ilovepuppieslol):

@sooobored

ILovePuppiesLol (ilovepuppieslol):

just need to complete the proof

OpenStudy (sooobored):

your first statement is always the information that they give you "angle 2 and angle 5 are supplementary" the reasoning of this is always "given"

ILovePuppiesLol (ilovepuppieslol):

yea

OpenStudy (sooobored):

the last statement will always be what you are trying to prove "prove l and m are parallel"

OpenStudy (sooobored):

angle 2 is equal to angle 3, any guesses on the reasoning?

ILovePuppiesLol (ilovepuppieslol):

vertical angles

OpenStudy (sooobored):

yup, how about 3 and 5 are supplementary?

ILovePuppiesLol (ilovepuppieslol):

same side interior angles???

ILovePuppiesLol (ilovepuppieslol):

idk how to word it

OpenStudy (sooobored):

i believe the term is interior consecutive angles

ILovePuppiesLol (ilovepuppieslol):

whta is the reason for the 4th one

OpenStudy (sooobored):

actually, i think reason 3 would be the substitution or transistive property you would use the consecutive interior angle theorem in order to prove that the lines are parallel

OpenStudy (sooobored):

since you know 2 and 5 are supplementary, and 2 is equal to 3, hence 3 and 5 must be supplementary

ILovePuppiesLol (ilovepuppieslol):

what

OpenStudy (sooobored):

and we cant assume 3 and 5 are supplementary because we dont "know" we have parallel lines cut by a transversal

ILovePuppiesLol (ilovepuppieslol):

yeah i changed it

ILovePuppiesLol (ilovepuppieslol):

Consecutive Interior Angles Theorem

ILovePuppiesLol (ilovepuppieslol):

idk

OpenStudy (sooobored):

that would be the last reason for proving parallel lines

ILovePuppiesLol (ilovepuppieslol):

how do i word it

ILovePuppiesLol (ilovepuppieslol):

i jsut winged it

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