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Gina wrote the following paragraph to prove that the segment joining the midpoints of two sides of a triangle is parallel to the third side.
Given: ∆ABC
Prove: The midsegment between sides Line segment AB and Line segment BC is parallel to side Line segment AC.
Draw ∆ABC on the coordinate plane with point A at the origin (0, 0). Let point B have the ordered pair (x1, y1) and locate point C on the xaxis at (x2, 0). Label point D as the midpoint of Line segment AB with coordinates at Ordered pair the quantity 0 plus x sub 1, divided by 2; the quantity 0 plus y sub 1, divided by 2 by th
 one year ago
 one year ago
Gina wrote the following paragraph to prove that the segment joining the midpoints of two sides of a triangle is parallel to the third side. Given: ∆ABC Prove: The midsegment between sides Line segment AB and Line segment BC is parallel to side Line segment AC. Draw ∆ABC on the coordinate plane with point A at the origin (0, 0). Let point B have the ordered pair (x1, y1) and locate point C on the xaxis at (x2, 0). Label point D as the midpoint of Line segment AB with coordinates at Ordered pair the quantity 0 plus x sub 1, divided by 2; the quantity 0 plus y sub 1, divided by 2 by th
 one year ago
 one year ago

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luiszBest ResponseYou've already chosen the best response.0
Gina wrote the following paragraph to prove that the segment joining the midpoints of two sides of a triangle is parallel to the third side. Given: ∆ABC Prove: The midsegment between sides Line segment AB and Line segment BC is parallel to side Line segment AC. Draw ∆ABC on the coordinate plane with point A at the origin (0, 0). Let point B have the ordered pair (x1, y1) and locate point C on the xaxis at (x2, 0). Label point D as the midpoint of Line segment AB with coordinates at Ordered pair the quantity 0 plus x sub 1, divided by 2; the quantity 0 plus y sub 1, divided by 2 by the Midpoint Formula. Label point E so it is the midpoint of Line segment BC with an ordered pair of Ordered pair the quantity of x sub 1 plus x sub 2 divided by 2; the quantity of 0 plus y sub 1 divided by 2 by the Midpoint Formula. The slope of Line segment DE is found to be 0 through the application of the slope formula: The difference of y sub 2 and y sub 1, divided by the difference of x sub 2 and x sub 1 is equal to the difference of the quantity 0 plus y sub 1, divided by 2, and the quantity 0 plus y sub 1, divided by 2, divided by the difference of the quantity x sub 1 plus x sub 2, divided by 2 and the quantity 0 plus x sub 1, divided by 2 is equal to 0 divided by the quantity x sub 2 divided by 2 is equal to 0 When the slope formula is applied to Line segment AC the difference between y sub 2 and y sub 1, divided by the difference of x sub 2 and x sub 1 is equal to the difference of 0 and 0, divided by the difference of x sub 2 and 0 is equal to 0 divided by x sub 2 is equal to 0, its slope is also 0. Since the slope of Line segment DE and Line segment AC are identical, Line segment DE and Line segment AC are parallel by the definition of parallel lines.
 one year ago

luiszBest ResponseYou've already chosen the best response.0
http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/1001/1001_G4_Q12b.gif
 one year ago

luiszBest ResponseYou've already chosen the best response.0
here are the answer choices...
 one year ago

luiszBest ResponseYou've already chosen the best response.0
What is the flaw in Gina’s proof? Points D and E must be constructed, not simply labeled, as midpoints. Segments DE and AC are parallel by construction. The slope of segments DE and AC is not 0. The coordinates of D and E were found using the Distance between Two Points Postulate
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.3
Is it this question? http://assets.openstudy.com/updates/attachments/4fe3df92e4b06e92b872936fyourmom141340333980899georgeiiieiehjkdhkjs.jpg
 one year ago

luiszBest ResponseYou've already chosen the best response.0
where did you find that?
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.3
It was a question I answered two days ago.
 one year ago

luiszBest ResponseYou've already chosen the best response.0
Did you find it on FLVS online?
 one year ago

luiszBest ResponseYou've already chosen the best response.0
I am a Florida Virtual School Student
 one year ago

luiszBest ResponseYou've already chosen the best response.0
can you help me out here?
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.3
First off, which choices can we easily eliminate?
 one year ago

luiszBest ResponseYou've already chosen the best response.0
Choice three is erroneous
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.3
Right, any others you can see are obviously wrong?
 one year ago

luiszBest ResponseYou've already chosen the best response.0
and the distance formula was never used, so we can eliminate 4
 one year ago

luiszBest ResponseYou've already chosen the best response.0
But there was a flaw in her work
 one year ago

luiszBest ResponseYou've already chosen the best response.0
I have a feeling that her flaw was in choice 1
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.3
Right again. Now it's up to 1 or 2. Let's look at 1. Did Gina construct D and E, or did she label them?
 one year ago

luiszBest ResponseYou've already chosen the best response.0
Points D and E must be constructed, not simply labeled, as midpoints.
 one year ago

luiszBest ResponseYou've already chosen the best response.0
she did not construct them
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.3
Right. So the flaw is that she labeled them
 one year ago

luiszBest ResponseYou've already chosen the best response.0
by browser logged off automatically without my permission :(
 one year ago

luiszBest ResponseYou've already chosen the best response.0
wait!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 one year ago

luiszBest ResponseYou've already chosen the best response.0
;D!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 one year ago

luiszBest ResponseYou've already chosen the best response.0
:D!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 one year ago

luiszBest ResponseYou've already chosen the best response.0
I didn't lose them!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 one year ago

luiszBest ResponseYou've already chosen the best response.0
two more nasty suckers coming up
 one year ago
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