Question

Angles help, please? Will medal; no direct answers!

Answer 1

see angle JCB and angle DCE are vertically opposite angles........

Answer 2

Ahh, yes

Answer 3

Is there any formula for finding these or is it visual math only?

Answer 4

@epicjellypanda i guess both ways.....
like theres a triangle DCE ......so r given the value of one angle....find the other two...

Answer 5

Okay

Answer 6

there isn't a DCE option or angle measurement

Answer 7

I'm still really confused and I have to finish this so I might move on and then come back

Answer 8

in triangle CDE .....its given tht CD = DE .......
so angle DCE = angle DEC

Answer 9

Ah, okay

Answer 10

can u do it....

Answer 11

yes

Answer 12

I put that they were matching pairs because both angles are 54 degrees

Answer 13

in triaNGLE DCE
54 + 2X = 180
X = 63

Answer 14

Okay

Answer 15

so its like
angle DCE = angle JCB = angle DEC

Answer 16

@epicjellypanda

Answer 17

Got it

Answer 18

now see triangle AIB
angle AIB = 90
angle IBA = 63
so angle IAB = ????? @epicjellypanda

Answer 19

Okay, yes, I'm a but confused

Answer 20

Wait, is it all supposed to equal 180?

Answer 21

confused???hmmm
yeah

Answer 22

remember sum of all angles of a triangle = 180 :)

Answer 23

27

Answer 24

now in triangle EFG...
angle EFG = 45
ccan u tell me the value of angle FGE.....give a try...@epicjellypanda

Answer 25

@epicjellypanda

Answer 26

Okay, is DEC the opposite of FEG because the equasion i see in my head is 45+x+x=180

Answer 27

no no....its not like tht.....
see angle CEG = angle FGE...(alternate interior angle)...remember.....??

Answer 28

I feel like there's something right in front of my face that I'm not getting

Answer 29

I'm drawing it out to see if this will help and be more interactive than the screen

Answer 30

http://www.mathsisfun.com/geometry/alternate-interior-angles.html

Answer 31

Okay

Answer 32

So would it be 108 or am I still not getting it

Answer 33

yup angle EGF = 108
angle EFG = 45
get angle GEF .....

Answer 34

27

Answer 35

yeah so angle GEF = angle IAB = 27 :)

Answer 36

Wait, if that one is 27, would it mean that its paired with the small triangle?

Answer 37

Yes :O

Answer 38

now can u tell me relation between angle CHI and angle HCE???

Answer 39

It seems as if theyre the same angle

Answer 40

how?????

Answer 41

Alternate interior angle?

Answer 42

cool....xD

Answer 43

so if we find it for one, we've got the other

Answer 44

Or we could automatically say that they're the same?

Answer 45

see u made three pairs...now the left two will obviously form a pair....lol

Answer 46

Whoa

Answer 47

:))))1

Answer 48

Thank you si much!

Answer 49

*so

Answer 50

u r most welcome.....i hope u understood..:)

Answer 51

I do now! My dad and I ran into this problem before and couldn't do it, and he's an architect, so thank you a lot! I wish I could give you more than one medal

Answer 52

anytime...:)