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Mathematics 12 Online
OpenStudy (anonymous):

@jim_thompson5910 Can you help me on this problem? I tried it out, but don't know which side goes to which- I keep rotating it differently and it's confusing me.

jimthompson5910 (jim_thompson5910):

AF || EC (given)

jimthompson5910 (jim_thompson5910):

what info can you get from that statement

OpenStudy (anonymous):

\[A \approx E\] \[F \approx C\] Therefore, the answer I got is option A. ~ @jim_thompson5910

jimthompson5910 (jim_thompson5910):

so you're saying angle A and angle E are congruent?

OpenStudy (anonymous):

Yes. @jim_thompson5910

jimthompson5910 (jim_thompson5910):

that's not true

OpenStudy (anonymous):

:/

OpenStudy (anonymous):

Wait, it's A= C and E=F , that's what I got now.

jimthompson5910 (jim_thompson5910):

better

jimthompson5910 (jim_thompson5910):

why does E = F?

OpenStudy (anonymous):

-Supplementary. ~I got option D.

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

they add to 180 degrees?

OpenStudy (anonymous):

well they don't have aright angle ...

OpenStudy (anonymous):

a right *

jimthompson5910 (jim_thompson5910):

what do you mean?

OpenStudy (anonymous):

Never mind, the first one for sure measures to 90 degrees.

OpenStudy (anonymous):

By the first one, I mean EC .

jimthompson5910 (jim_thompson5910):

EC is a segment, not an angle

OpenStudy (anonymous):

Yes, I know- only E and C are the angles there.

jimthompson5910 (jim_thompson5910):

say we have these two parallel lines |dw:1409967828639:dw|

jimthompson5910 (jim_thompson5910):

then we have this transversal cut |dw:1409967848285:dw|

jimthompson5910 (jim_thompson5910):

what can we determine from this?

OpenStudy (anonymous):

The two parallel lines are cut by the transversal.

jimthompson5910 (jim_thompson5910):

what else?

OpenStudy (anonymous):

|dw:1409968409976:dw| Supplementary

jimthompson5910 (jim_thompson5910):

that's true, which angles are congruent?

OpenStudy (anonymous):

|dw:1409968618580:dw|

OpenStudy (anonymous):

A=B C=D ---- Complementary angles.

jimthompson5910 (jim_thompson5910):

A = B but they aren't complimentary

jimthompson5910 (jim_thompson5910):

complimentary means they add to 90 degrees

OpenStudy (anonymous):

I meant alternate interior.. I'm was looking at something else .

jimthompson5910 (jim_thompson5910):

complementary*

jimthompson5910 (jim_thompson5910):

yep, they are alternate interior angles

OpenStudy (anonymous):

I just don't get how to apply that in this problem.. I don't understand what the transversal part is, is it angle "B" ?

OpenStudy (anonymous):

Can you walk me through this?

jimthompson5910 (jim_thompson5910):

we have this |dw:1409969313805:dw|

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