Question

Two Column Proof help? ;o @yummydum

Answer 1

I'll post the problems i need help on in a second. But I don't really understand how to do them at all... lol

Answer 2

lol....well quick cuz i gotta go :)

Answer 3

If you need to go you can<3 I don't need immediate help(: just whenever you have time

Answer 4

post the question and ill get as much as i can :)....if i dnt finish ill do the rest later :)

Answer 5

so....proof please :D :P

Answer 6

Working on it l

Answer 7

B)

Answer 8

http://prntscr.com/co9or

Answer 9

this..is soo.....EASY :D:D

Answer 10

omg i <3 geometry

Answer 11

OO: how? omg if you can help me you are GOD

Answer 12

no no...there is only one god...and he watches from above..im mereley one of his many imperfect creations :)

Answer 13

Well, you are a boss then (:

Answer 14

lol....thanks :P

Answer 15

k so lets do this XD

Answer 16

XD yes >:3 soo. we begin with the given ones right? o:

Answer 17

http://prntscr.com/co9vh also, am i doing this one right? & I also do not know what to put for the bottom row

Answer 18

angle EGF=60 Given
angle AGF=90 Given
angle EGB is a straight angle
EGF+AGF+AGB=180 Angle addition postulate
60+90+x=180 substitution property
150+x=180 combine like terms
x=30 subtraction property
AGB=30 substituiton property

Answer 19

i dont remember how to prove the 3rd step :\

Answer 20

but the rest is good :D

Answer 21

the definition of a straight angle?

Answer 22

:D thankyou so much! I will be tagging you if i run into any more trouble ^^

Answer 23

so for the second question u asked :D

Answer 24

adn the last row....lemme take a look :)

Answer 25

angle ABD is congruent to angle GEF alternate exterior angles are congruent

Answer 26

that one was already used though,? lol

Answer 27

no i fixed it :)

Answer 28

angle ABD is congruent to angle GEF alternate exterior angles are congruent

Answer 29

oh! lol fail (:

Answer 30

umm...im not sure i get the last one :$

Answer 31

i mean u cud say tht CD is perpendicular to AE and GH is parallel to CD so therefore AG and AE are also perpendicular

Answer 32

wait, would it have something to do with GH being perpendicular to AF?

Answer 33

thats what you have to prove....so since CD and AF are perpendicular and CD and GH are parallel, that kinda makes GH perpendicular to AF as well

Answer 34

do you get what im saying? :)

Answer 35

kind of o: I'm just a little iffy on what to put in the blanks XD

Answer 36

me too...i mean i can explain it i just dont know what to put in the last two blanks :\

Answer 37

so got anything??

Answer 38

not yet, I've been surfing through my fail-textbook

Answer 39

if i had my textbook i cud probably find it

Answer 40

but i dont

Answer 41

I'm lucky I even have this textbook): when i got kicked out of school they forgot to ask for it back

Answer 42

lemme see if i can get a friend on this

Answer 43

lol WOW :O :P

Answer 44

okay!(: I will keep looking!

Answer 45

hey @zepp ......wanna help out :D

Answer 46

there he/she is :D

Answer 47

okay so heres the link to the proof she needs help with http://prntscr.com/co9vh .... last row

Answer 48

I found the two column proof section

Answer 49

great! :)

Answer 50

now found the perpendicular

Answer 51

okay i think i found something

Answer 52

cool :D

Answer 53

theorem 3-11
In a plane, if a line is perpendicular to one of two parallel lines, then it is also perpendicular to the other.

Answer 54

but i guess that still doesn't tell us what goes in the "reason" column

Answer 55

BOOM!!

Answer 56

no no thts the answer...I KNEW THERE WAS A THEOREM :D

Answer 57

so i put theorem 3-11? :D

Answer 58

well in a 2 column proof you cant just name a theorem...so you just summerize the concept

Answer 59

so you put any line parallel to another line who is perpendicular to a line is also perpendicular to that line

Answer 60

that makes little sense....but im sure you can re-word that :P

Answer 61

okay well..i head out now :)

Answer 62

i hope i was helpful :D

Answer 63

You were! Danke! Danke! :D

Answer 64

Ich will tag you if i run into any more two-column proof trouble ^^