highschoolmom2010
  • highschoolmom2010
alternate interior angles theorem
Mathematics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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highschoolmom2010
  • highschoolmom2010
1 Attachment
ganeshie8
  • ganeshie8
do u knw how to recognize corresponding angles ?
highschoolmom2010
  • highschoolmom2010
im not really good at it... but kinda

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ganeshie8
  • ganeshie8
ha, \(\angle 2 \) and \(\angle 6\) are corresponding angles. convince urself this first
highschoolmom2010
  • highschoolmom2010
yea so <1 &<5 are corresponding
ganeshie8
  • ganeshie8
yea! you're brilliant :)
ganeshie8
  • ganeshie8
when lines are parallel, then corresponding angles are congruent.
ganeshie8
  • ganeshie8
2. \(\angle 2 \cong \angle 6\) 2. By Corresponding Angles postulate
ganeshie8
  • ganeshie8
Does that make sense
highschoolmom2010
  • highschoolmom2010
yea that makes sense
ganeshie8
  • ganeshie8
Next, are you familiar wid "Vertical angles" ?
highschoolmom2010
  • highschoolmom2010
the ones that go up and down on a line
ganeshie8
  • ganeshie8
|dw:1371489856641:dw|
ganeshie8
  • ganeshie8
when two lines cut, vertical angles are formed.
ganeshie8
  • ganeshie8
|dw:1371489911430:dw|
ganeshie8
  • ganeshie8
those two are vertical angles, they are congruent.
ganeshie8
  • ganeshie8
Vertical angles are always congruent.
highschoolmom2010
  • highschoolmom2010
alright i understand that
ganeshie8
  • ganeshie8
3. \(\angle 4 \cong \angle 2\) 3. Vertical angles are congruent
highschoolmom2010
  • highschoolmom2010
i see
highschoolmom2010
  • highschoolmom2010
so how do i prove <4 & <6 are congruent
ganeshie8
  • ganeshie8
last one is bit easy, i want u think and figure out
ganeshie8
  • ganeshie8
give it a try
highschoolmom2010
  • highschoolmom2010
alternate interior angles are congruent
ganeshie8
  • ganeshie8
nope. thats what u need to prove. u cant use wat u proving as a reason lol
highschoolmom2010
  • highschoolmom2010
lol it was worth a shot so nope i have no idea
ganeshie8
  • ganeshie8
ha
ganeshie8
  • ganeshie8
look at 2, 3 statements. stare at them.
ganeshie8
  • ganeshie8
statement 3 says : \(\angle 4 \cong \angle 2\) statement 2 says : \(\angle 2 \cong \angle 6\)
ganeshie8
  • ganeshie8
we have this, if a=b, and b=c, then a = c, wat property is it ?
highschoolmom2010
  • highschoolmom2010
they are the same
ganeshie8
  • ganeshie8
when u doing proofs, u shouldnt say "they are same" without saying "why they're same"
highschoolmom2010
  • highschoolmom2010
symmetry
ganeshie8
  • ganeshie8
close, try again
ganeshie8
  • ganeshie8
if a=b, and b=c, then a = c, wat property is it ?
ganeshie8
  • ganeshie8
google.
highschoolmom2010
  • highschoolmom2010
transitive lol sorry i was looking in my notes
ganeshie8
  • ganeshie8
Yes !
highschoolmom2010
  • highschoolmom2010
hooray
ganeshie8
  • ganeshie8
good job :)
highschoolmom2010
  • highschoolmom2010
ty @ganeshie8
ganeshie8
  • ganeshie8
np :D

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