Question

.fill in the missing reasons to complete the proof?
given: vuy=uwt=x
prove: uw=ut

statement: reason
vuy=x given
uw=xy converse of the corresponding angles postulate
t=vuy ?
vuy=uwt given
ut=uw ?

Answer 1

can someone help me please?

Answer 2

:(

Answer 3

Agreed... What tools were offered with respect to this proof, algebra, calc, etc.

Answer 4

this is geometry part one ive had like 5 of these with no let up and i keep geting no help my school tutors dont know it either :(

Answer 5

i only have 10 left and im done .

Answer 6

If it's geometry, are there a collection of angles associated with this?

Answer 7

oh yes hold on

Answer 8

Well you can see how t=vuy because UY and TX are parallel with UW intersecting them. Therefore angle t must equal angle vuy.

Answer 9

omg thank you so much but do you have the reasons like sometimes its a property or something a girl helped me earlier. and gave me properties and other things

Answer 10

By the same token, if vuy is the same angle as uwt, then the triangle has two interior angles equal, making it an isosceles, which means that ut and uw must be equal.

Answer 11

omg thank you thank you so much can you help me with the rest of my exa please i dont have that many left.

Answer 12

I was thinking it was a property of congruent triangles, but I am not certain.

Answer 13

oh man (0_0)!

Answer 14

Is this the question you were referencing earlier? http://openstudy.com/users/tally#/updates/4faae8c2e4b059b524f6ba1c

Answer 15

yes ive asked this question different ways at different times like they are differen questions but all look the same.

Answer 16

Transversals, that is the rule about parallel lines.

Answer 17

http://library.thinkquest.org/20991/geo/ctri.html

Answer 18

so is it both then or just the rule about parallel lines?

Answer 19

The first is the rule about parallel lines, you can use that to prove that the two interior angles of the lower triangle are equal, indicating that it is an isosceles, meaning that the two sides must be equal.

Answer 20

oh i know asa and sss and stuff but i get confused on which one of these it could be i know it has to be two but i get stuck.

Answer 21

so its SSA then?

Answer 22

That is when you want to prove that two triangles are congruent, I would be hesitant to suggest that since you were only asking about specific angles and sides.

Answer 23

oh man im confused now on which one it is.

Answer 24

I would say that you prove t=uvy using parallel lines, transversals, and I would say that ut=uw because of the shape being an isosceles triangle.

Answer 25

okay so i use that to prove uw=ut okay okay im going to write this all down hold on.

Answer 26

thx you so much for helping me.

Answer 27

You're welcome.

Answer 28

IsABD=CBD by HL? If so, name the legs that allow the use of HL i think it is

Answer 29

Is there a drawing associated with this one too?

Answer 30

this is a median i think ?

Answer 31

so AD=BD please say im right?

Answer 32

AD cannot equal BD. AD is the hypotenuse of a right triangle using BD.

Answer 33

But you can say that since AD and CD are hypotenuses which are equal, and BD is a common leg between the two triangles, HL theorem could be used to prove they are congruent.

Answer 34

ugh i hate math okay so what could it be if d bisects?

Answer 35

?

Answer 36

idk i might be looking at the wrong thing this is the hl therem in medians right?

Answer 37

it says name the legs medians are equal no matter what i think and what im reading it says
The HL Postulate
Postulate: If there exists a correspondence between the vertices of two right triangles
such that the hypotenuse and a leg of one triangle are congruent to the corresponding
parts of the other triangle, then the two triangles are congruent. (HL)

Answer 38

Yep.

Answer 39

The leg(s) BD are equal as well as the hypotenuses AD and CD

Answer 40

okay so which legs do i put lol

Answer 41

BD is the leg they share so I would use it since it must be equal to each triangle.

Answer 42

okay so its just bd then?

Answer 43

Well BD is the leg and AD/CD are the respective hypotenuse, recall you need both for the theorem to apply.

Answer 44

so i need all three then

Answer 45

The theorem says that you must have a hypotenuse equal on both and a leg equal on both.

Answer 46

complete the proof by providing the missing reasons
given:cb bisects bd,de bisects ec, cb=de
prove dbc=ced


CB=DE,CB BISECTS BD AND DE BISECTS EC: GIVEN
CBD AND DEC ARE RIGHT ANGLES : DEFINITION OF PERPENDICULAR SEGMENTS
CBD=DEC: ?
CD=CD: ?
DBC=CED : ?

Answer 47

Looking at this I'm thinking it will probably be a SAS or ASA problem...

Answer 48

uh oh but idk which is which but is cd=cd a substitution?

Answer 49

Not much of a substitution if it's equal to itself. :)

Answer 50

okay so what do i put after it then ?

Answer 51

Well CD is equal to DA

Answer 52

okay so which things do i put in place of the question marks asa or sss or ssa ?

Answer 53

Well your first ?, CBD=DEC is also because of your perpendicular segments, they are both right angles.

Answer 54

hmmm, Why is it asking for the same angle over again in the reverse direction?

Answer 55

idk what its asking for i just need the answer lol so i can leave this ge i have 8 questions left :(

Answer 56

Since they are both 90 degree angles, you could arguably use the same logic on all of those ? marks. After all they are asking the same question over and over.

Answer 57

The question states: prove dbc=ced
You are only asked for one thing.

Answer 58

no im not im supose to pprovide the missing reasons

Answer 59

They appear to me to be all the same question.

Answer 60

We can move to your open question on this and maybe it will attract more helpers.

Answer 61

then what is the answer since its all the same ? because i dont get this and ive done that its been there for 25 mins now.

Answer 62

Well that is what I am saying, if I ask you why this angle, when viewed forward, is 90 degrees, and you give me a reason, looking at it backwards does not invalidate the reasoning.