Question

can someone help me with these 3 proofs, I have attached the file.. it has to get done by today! and i really appreciate it:) medals rewarded!

Answer 1

@roberman228

Answer 2

okay:)

Answer 3

yea, ive tried google

Answer 4

@whpalmer4 can you help?

Answer 5

@jim_thompson5910 can you help me with these couple of questions about geometry proofs?

Answer 6

how far did you get on #2

Answer 7

um i think i finished that one, not sure let me check

Answer 8

ok post what you got

Answer 9

im not so sure how to do it?

Answer 10

or just write it out here

Answer 11

like what do you mean?

Answer 12

# 2 im not sure what to do

Answer 13

what is the first step i need to do @jim_thompson5910 ?

Answer 14

well start with what you are given

Answer 15

so would it be

BCD=EDC
BCD=ECD

Answer 16

both are given?

Answer 17

good, start off saying those two sets of angles are congruent because that's given

Answer 18

so then it would look like this?

BCD=EDC|GIVEN
BCD=ECD|GIVEN

and then now what?

Answer 19

what segments can you say for sure are congruent

Answer 20

uuhmm not so sure.

Answer 21

i would have to say that BCD and BED are congruent right?

Answer 22

what segment is between angles BCD and EDC

Answer 23

is it just one segment?

Answer 24

yes do you see it?

Answer 25

CDE?

Answer 26

segment, not angle

Answer 27

F?

Answer 28

that's a point, not a segment

Answer 29

whats a segment?

Answer 30

there's the figure

Answer 31

what I'm talking about is this segment (in black)

Answer 32

ohhh C and D sorry lol

Answer 33

you mean segment CD right?

Answer 34

yes hhaha lol

Answer 35

that's the shared side between the two triangles that overlap

Answer 36

CD = CD by the reflexive property

Answer 37

then you can say those two overlapping triangles are congruent by the ASA property

Answer 38

okay, so what would our whole overall problem look like? ill do it, and you see if it looks correct

Answer 39

alright

Answer 40

BCD=EDC|GIVEN
BCD=ECD|GIVEN

so CD=CD by the reflexive property
the two overlapping triangles are congruent by the ASA property

would this be what it look like?

Answer 41

you'll have to be specific by actually naming the triangles

Answer 42

BCD=EDC|GIVEN
BCD=ECD|GIVEN

so CD=CD by the reflexive property
BCD and EDC are congruent by the ASA property

how about this?^^

Answer 43

you nailed it

Answer 44

awesome! okay how about the next one now:)

Answer 45

oh you might want to say triangles BCD and EDC are congruent by the ASA property

so you don't confuse them with angles

Answer 46

okay!

Answer 47

ok how do we get started on the next one

Answer 48

we have to start with what we are given.

Answer 49

exactly, so go ahead and state that

Answer 50

im not sure how that to start this one because Ive never done one with a midpoint in it, but ill try real quik

Answer 51

well you start off by stating that D is the midpoint of AC (given)

then you use the definition of midpoint to say that AD = CD

Answer 52

BDC=BDA|GIVEN
BCD=BAD|GIVEN

RIGHT?

Answer 53

where does it say that BCD=BAD is given?

Answer 54

actually no lol

Answer 55

but the first one is given

Answer 56

so add that on

Answer 57

AD=CD|GIVEN

right?

Answer 58

AD = CD not because it's given, but by the definition of midpoint

Answer 59

A midpoint cuts a line segment into two equal halves

Answer 60

so then how do i find my other given?

Answer 61

You're done with you're givens

Answer 62

oh so theirs only one given then

Answer 63

Now you need one more side or one more angle, here is a visual hint: