I would love help on my homework on proofs and I don't really understand them, so I would really love help on it. I will give you a medal for your help and appreciation.
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OpenStudy (firejay5):
OpenStudy (firejay5):
@phi
OpenStudy (firejay5):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
start with what is literally given
OpenStudy (firejay5):
got it #2
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jimthompson5910 (jim_thompson5910):
you tell me
OpenStudy (firejay5):
definition of right angle right
jimthompson5910 (jim_thompson5910):
yes or perpendicular lines
jimthompson5910 (jim_thompson5910):
either one works in my opinion
jimthompson5910 (jim_thompson5910):
oh wait, you would probably start off with perpendicular, the move to right angles
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OpenStudy (firejay5):
so perpendicular lines
jimthompson5910 (jim_thompson5910):
yeah
OpenStudy (firejay5):
3 is complementary angles
jimthompson5910 (jim_thompson5910):
no that would be the definition of right angles
jimthompson5910 (jim_thompson5910):
in statement 2, they use "right angles", so that's why it makes sense to have that reason in #3
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OpenStudy (firejay5):
definition of congruent angles for #4
jimthompson5910 (jim_thompson5910):
that's for #5
OpenStudy (firejay5):
4 is vertical angles
jimthompson5910 (jim_thompson5910):
no look at step 3, and use that to figure out #4
OpenStudy (firejay5):
corresponding angles
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jimthompson5910 (jim_thompson5910):
if a = b and c = b, then a = c
what property did I just use?
OpenStudy (firejay5):
transitive property is #4
jimthompson5910 (jim_thompson5910):
closer, but no
OpenStudy (firejay5):
symmetric property
OpenStudy (firejay5):
#4 is symmetric property
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jimthompson5910 (jim_thompson5910):
no, what's the idea that if x = 2 then 4x turns into 4*2
OpenStudy (firejay5):
substitution property
jimthompson5910 (jim_thompson5910):
bingo
OpenStudy (firejay5):
4 is substitution property
OpenStudy (firejay5):
6 is definition of parallel lines right
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jimthompson5910 (jim_thompson5910):
no
OpenStudy (firejay5):
what is it then
OpenStudy (firejay5):
definition of parallel then
jimthompson5910 (jim_thompson5910):
look through your notes
jimthompson5910 (jim_thompson5910):
how are angles 1 and 2 related? what type of angles are they?
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OpenStudy (firejay5):
|dw:1379456133398:dw|
jimthompson5910 (jim_thompson5910):
how are angles 1 and 2 related? what type of angles are they?
OpenStudy (firejay5):
Congruent
jimthompson5910 (jim_thompson5910):
what else
OpenStudy (firejay5):
and right angles
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OpenStudy (firejay5):
I mean #6 is explanatory it's parallel, because it has the parallel symbol
OpenStudy (firejay5):
How is the definition of parallel or parallel lines not right
jimthompson5910 (jim_thompson5910):
hint: 1 and 2 are corresponding angles
OpenStudy (firejay5):
I see that 6 is corresponding angles
jimthompson5910 (jim_thompson5910):
yes so if they are congruent, then how does that prove the lines are parallel?
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OpenStudy (firejay5):
the corresponding angles are equal if the lines are parallel
OpenStudy (firejay5):
so am I still wrong or was I right?
jimthompson5910 (jim_thompson5910):
basically the idea if the corresponding angles are congruent, then the lines are parallel
so this is using the converse of the corresponding angles postulate
OpenStudy (firejay5):
6 is the converse of the corresponding angle postulate