anonymous
  • anonymous
Which figure correctly displays the proof?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
anonymous
  • anonymous
@ganeshie8
ganeshie8
  • ganeshie8
oly by using the Given thing we can make out the figure. give it a try once :)

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More answers

anonymous
  • anonymous
What does the upside down "T" mean again?
anonymous
  • anonymous
Perpendicular, right?
ganeshie8
  • ganeshie8
correct :) , \(\perp \) means perpendicular
anonymous
  • anonymous
it's between A and D, i think the right answer is D
anonymous
  • anonymous
Because AB and AC have to be perp, and in figure for choice a they aren't
ganeshie8
  • ganeshie8
thats the one, good work !
anonymous
  • anonymous
Awesome! I have a few more. I know you're probably thinking I'm posting too much, but it's like this pre-test thing I have to take before I start the unit - so I don't really know how to do them yet because I haven't learned the material yet.
ganeshie8
  • ganeshie8
its okay, you're doing very good wid these problems... post them il see if i can help :)
anonymous
  • anonymous
I did two of the, I just don't know the last two.
1 Attachment
ganeshie8
  • ganeshie8
you've mastered the reflexive property !
ganeshie8
  • ganeshie8
those two are right, lets see rest of them
ganeshie8
  • ganeshie8
last one is SAS
ganeshie8
  • ganeshie8
cuz, previous to that we established that Side, Angle, Side pairs are congruent.
anonymous
  • anonymous
Okay, and then the second one is B right?
ganeshie8
  • ganeshie8
Yes ! thats the oly left, it has to be !
anonymous
  • anonymous
Thank you! Here is another one: Determine the conditions that will make ΔPQR ≅ ΔSTR. Given that m∡PQR and m∡STR equals 90° and PQ || ST , which of the following statements will guarantee that ΔPQR ≅ ΔSTR? a) PQ || ST b) ∡PQR ≅ ∡RST c) ∡QRT is a straight angle d) R is a midpoint of QT
anonymous
  • anonymous
@ganeshie8
ganeshie8
  • ganeshie8
look at the pic
ganeshie8
  • ganeshie8
we have ticks PQ and ST, that means those two sides are equal.
ganeshie8
  • ganeshie8
we have square box at angles Q and T, that means those are right angles, and they are equal
ganeshie8
  • ganeshie8
so, this is wat given to us to start wid :- one set of SIDEs are equal one set of ANGLEs are equal
ganeshie8
  • ganeshie8
let me knw once u make sense of above :)
anonymous
  • anonymous
All of the answer choices are correct statements, right? So to ensure that ΔPQR ≅ ΔSTR I think the answer is choice b
ganeshie8
  • ganeshie8
wrong, try again.
anonymous
  • anonymous
Well choice D is irrelevant in my opinion, so choice A?
ganeshie8
  • ganeshie8
why do u think D is irrelevent. D is the correct answer !
ganeshie8
  • ganeshie8
if R is the midpoint of QT, that makes \(QR \cong RT\)
ganeshie8
  • ganeshie8
then we can use SAS to prove triangles are congruent !
anonymous
  • anonymous
Well that makes sense. That crossed my mind, but I quickly shot it down lol
ganeshie8
  • ganeshie8
its okay... :)
anonymous
  • anonymous
Which fact could you use to help prove that ΔAEDΔBEC using Side-Angle-Side? Answer choices: a) AD || CB ---> This is true b) CE/DE = BE/AE ---> this is true c) CE = 1/3(DE) ---> This could be true d) AD ≅ CB --- > we can eliminate this one because it isn't true
ganeshie8
  • ganeshie8
good :) we need to prove the similarity using SAS
anonymous
  • anonymous
The SAS Postulate states that if two sides and the included angle of the triangle are congruent, and the same for the other triangle, then the two triangles are congruent. so I think the answer is b
anonymous
  • anonymous
Because b includes the angles, I think.
ganeshie8
  • ganeshie8
hang on - here we are working on SIMILAR triangles. not CONGRUENT triangles.
ganeshie8
  • ganeshie8
first, get that clear ok
anonymous
  • anonymous
It doesn't work with both?
ganeshie8
  • ganeshie8
similar and congruent are two different things
anonymous
  • anonymous
I was just giving you the definition I was given.
anonymous
  • anonymous
I know they are different, congruent means they are exactly the same and similar means the proportional to each other.
ganeshie8
  • ganeshie8
good :) then we cna move on
ganeshie8
  • ganeshie8
a - doesnt work cuz, parallel lines doesnt tell anything about sides.
anonymous
  • anonymous
And we've eliminated D because it isn't true.
ganeshie8
  • ganeshie8
c) CE = 1/3(DE) ---> This could be true doesnt work cuz, oly one side pairs ratio it is, it doesnt tell about the second SIDE pair
ganeshie8
  • ganeshie8
d - doesnt work which is obvious
anonymous
  • anonymous
So the only one left is B, I nwas right!
anonymous
  • anonymous
I was*
ganeshie8
  • ganeshie8
b) CE/DE = BE/AE ---> this is true it works. cuz its saying the two pairs of sides are forming a proportion. and the included angle at E is congruent by vertical angles postulate. so we can prove triangles are similar by SAS similarity.
ganeshie8
  • ganeshie8
Yes, you're right !
anonymous
  • anonymous
Awesome! I really appreciate your help!
ganeshie8
  • ganeshie8
np :)

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