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Mathematics 13 Online
OpenStudy (samirahdanyel):

someone help me. attachment below

OpenStudy (samirahdanyel):

OpenStudy (samirahdanyel):

@ivettef365

OpenStudy (ivettef365):

do you know what is the definition of alternate interior angles ?

OpenStudy (samirahdanyel):

yes kinda of

OpenStudy (samirahdanyel):

its when the angles are on the opposite side of the transversal @ivettef365

OpenStudy (ivettef365):

ok, so what is the first pargraph saying

OpenStudy (samirahdanyel):

that the angles are alternate interior angles

OpenStudy (ivettef365):

are those angles on the opposite side of the transversal ?

OpenStudy (samirahdanyel):

yes

OpenStudy (ivettef365):

ok that is true

OpenStudy (ivettef365):

you already checked the second paragraph and is correct

OpenStudy (samirahdanyel):

okay good

OpenStudy (samirahdanyel):

i dont know about the third one

OpenStudy (ivettef365):

corresponding angle theorem

OpenStudy (samirahdanyel):

it is if the two parallel lines are cut by a transversal then the pairs of corresponding angles are congruent

OpenStudy (ivettef365):

yes but the angles they are showing are one next to each other, so those are not corresponding angles

OpenStudy (samirahdanyel):

nope they're not

OpenStudy (samirahdanyel):

what about 4th one

OpenStudy (ivettef365):

ok what is the definition of a parallelogram?

OpenStudy (samirahdanyel):

a four-sided plane rectilinear figure with opposite sides parallel.

OpenStudy (ivettef365):

and opposite sides are equal in length

OpenStudy (samirahdanyel):

true

OpenStudy (ivettef365):

correct

OpenStudy (samirahdanyel):

i think this one is true

OpenStudy (ivettef365):

given is the information the provide you when they are asking you a question

OpenStudy (samirahdanyel):

the statement is true

OpenStudy (ivettef365):

I see that WZ and XY shows that are congruent by the one line on marked on both lines

OpenStudy (samirahdanyel):

yes but they're are no congruent lines on WX and ZY

OpenStudy (ivettef365):

why not?

OpenStudy (samirahdanyel):

because they're not congruent

OpenStudy (ivettef365):

check this website so you can see the properties of a parallelogram https://www.mathsisfun.com/definitions/parallelogram.html

OpenStudy (paxpolaris):

|dw:1464318937653:dw| Side-Angle-Side

OpenStudy (samirahdanyel):

its is true. because they sides are all the same measure

OpenStudy (samirahdanyel):

because of the measures of the angles

OpenStudy (paxpolaris):

@ivettef365 we are trying to prove it's a parallelegram .... we can't use it's a parallelongram as a reason to prove it's a parallelogram

OpenStudy (ivettef365):

is hard to show that prove by writing, don't know how to do a nice drawing like you did

OpenStudy (paxpolaris):

4 is true, but can't be used in the proof. correct statement for the proof are 1, 2, and 5

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