Question

The figure below shows a quadrilateral ABCD with diagonal BD bisecting angle ADC:

A quadrilateral ABCD is drawn with BD as a diagonal. BD bisects angle ADC and forms two triangles ABD and CBD. AD and CD are equal in length.

Which equation is true?

AB = BC
DB = 2DC
AB = DB
AB = 2AD

Answer 1

@welshfella

Answer 2

@Mehek14

Answer 3

I think C or D

Answer 4

http://prntscr.com/d2nysw

Answer 5

Sorry I forgot to post the picture

Answer 6

You need to show that the 2 triangles ABD and CBD are congruent.

Answer 7

How do I do that?

Answer 8

by SSS , SAS AAS etc

Answer 9

Ok give me a sec

Answer 10

sorry gotta go right now

Answer 11

@jabez177

Answer 12

@Jaynator495 @Mehek14 @jigglypuff314 Please help guys

Answer 13

Let me find someone who can help for you :)

Answer 14

Thank you so much

Answer 15

@AloneS

Answer 16

What grade is this?

Answer 17

It is geometry 10th grade

Answer 18

I just need help with two more questions

Answer 19

I'm out. :')
@iYuko

Answer 20

I got this!

Answer 21

Just give me a few minutes, my class is almost over, then i can help xD

Answer 22

YAY

Answer 23

ok

Answer 24

In the meantime, @.Sam. can you help them?

Answer 25

Alrigty, finally! In about 30 seconds I will be able to help, if I disappear don't worry, I should be back shortly if I do!

Answer 26

Ok thanks

Answer 27

(My disappearing is why i normally don't help in math lol)

Answer 28

Just one question, Are you in K12? This seems similar to work I have previously done :P

Answer 29

FLVS

Answer 30

Ah.

Answer 31

I'm just going to look over the problem really quick (So I can get the answer, then guide you)

Answer 32

ok

Answer 33

Oh this should be fun... Alright let's start with what we know...

Answer 34

And..... Thats nothing

Answer 35

Is there a diagram that came with the question, or will i have to make one based off of given information?

Answer 36

No it just gives me a picture and the problem

Answer 37

ok, whats the picture?

Answer 38

http://prntscr.com/d2nysw

Answer 39

PERFECT! that's what we needed!

Answer 40

It asks
"Which equation is true?

AB = BC
DB = 2DC
AB = DB
AB = 2AD"
Using this diagram we can figure this out.

Answer 41

ok

Answer 42

I was thinking it was D" AB = 2AD

Answer 43

CB should be BC... *facedesk* WELL ANYWAY

Answer 44

It's asking which is the same as the other,
or congruent.

Answer 45

is AB the same as DB?

Answer 46

No

Answer 47

Good, is AB the same as 2AD?

Answer 48

I think so

Answer 49

No, It's not...
What about
DB and 2DC?

Answer 50

No

Answer 51

Good, and what does that leave?

Answer 52

It leaves answer choice A

Answer 53

Good! Do you understand why that is the correct answer?

Answer 54

No not really

Answer 55

Alright, I'll explain it.

Answer 56

Triangle DAB is a reflection of the triangle DCB, so since AB, and BC are lines opposite of one another on a reflected triangle, they are congruent.

Does this make sense?

GOOD LORD HOW MANY TIMES I GOTTA TYPE THIS TO GET IT RIGHT, sorry lol

Answer 57

Could you check my answer on another one?

Answer 58

Sure, but please post another question for it.

Answer 59

ok