Question

Help!
Given:
Line AB is perpendicular to Line FC
Line DE is perpendicular to Line FC
Line AB is congruent to line DE
Angle DEF is congruent to Angle BAC

Answer 1

uhh, I can't open this type of file :/ maybe a link?

Answer 2

It gives a two-column proof then asks Which figure correctly displays this proof?

Answer 3

I can post the figures

Answer 4

or you can draw it XD.

Answer 5

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_1003_04/image0024e988f3c.gif
http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_1003_04/image0034e988f3c.gif
http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_1003_04/image0044e988f3c.gif
http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_1003_04/image0054e988f3c.gif

Answer 6

These are the choices

Answer 7

alright so, first, AB is perpendicular to FC

Answer 8

check the first one: no because they don't form 90 angles.

Answer 9

Statement Reason
Line AB is perpendicular to Line FC
Line DE is perpendicular to Line FC Given
Line AB is congruent to Line DE
Angle DEF is congruent to Angle BAC

Angle FDE=90 degrees and Definition of
Angle ABC=90 degrees Perpendicular Lines

Angle FDE is congruent to Angle ABC Substitution

Triangle ABC is congruent to triangle EDF Angle-Side-Angle

Answer 10

That's the two-column proof ^

Answer 11

Do you have a guess?

Answer 12

No idea...

Answer 13

Alright. With the very first part of the proof, you can see if the choice makes sense. Look at lines FC and AB. See if they look perpendicular and tell me what yo think.

Answer 14

I think its the first choice

Answer 15

That's the only one that has an actual line "FC"

Answer 16

Ok, do you see where I'm coming from though @J.L. ? Exactly. All of the others don't make sense.

Answer 17

Yea, that's what I was doing but I was getting confused

Answer 18

Ok. Just making sure :)