Question

Can someone help me with proofs!!!

Answer 1

ok

Answer 2

file:///C:/Users/student/Pictures/Snipped%20homework%20help.PNG
this is the assignment

Answer 3

that file connects to your computer , i have no access to it

Answer 4

.-. hmmm

Answer 5

Now that you know how to prove a theorem, it's time to do it completely on your own. Select two line and angle proofs from the left column and two triangle proofs from the right column to prove.

You may prove each theorem using either a two-column, paragraph, or flow chart proof. No matter the type of proof you choose, it must demonstrate a logical progression from one step to the next.

For each proof, you will need to create and submit to your instructor the initial, or given figures: lines, segments, angles, or triangles. You may do this by hand or using technology. Select a proof to receive directions on how to create the initial figure using GeoGebra and a reminder as to what you are trying to prove.

Answer 6

c:/users <--- this is a file for your computer

Answer 7

yeah :/

Answer 8

use the Attach File button to show us the picture...

Answer 9

How would I do that>?

Answer 10

In the bottom .... to the left of the Post button .... there are 3 buttons: Equation, Draw, and Attach File. Use "Attach File".

Answer 11

but you cant open the links but there just links to directions to how to you geobebra.

Answer 12

I think I can copy and paste whats ont he links .... yes I can. So I guess I will pick Vertical Angle Theorem
Corresponding Angles Theorem
Triangle Sum Theorem
Isosceles Triangle Theorem
Since i have to pick four.

Answer 13

@PaxPolaris You there?

Answer 14

What's the Corresponding Angle theorem?

Answer 15

Umm.... Im not sure

Answer 16

isnt it something liek this

Answer 17

Wait is it if a transversal intersects two parallel lines, then the alternate interior angles are congruent.

Answer 18

if 2 parallel lines are cut by a transversal then the corresponding angles are congruent.

^^^ This is a postulate, not a theorem ... we can't prove it.

Answer 19

oh ok

Answer 20

Yes, we can prove the Alternate Interior Angle theorem.

Answer 21

:D yay so is that what my teacher is looking for? and how to I write the proof because it says i need to write it in a flow chart or para and ect.

Answer 22

paragraph*

Answer 23

which method do you prefer, use whatever method you yourself find easiest to understand.

Answer 24

I think paragraph would be easiest

Answer 25

Ok I got the Vertical angel theorem written down.

Answer 26

So would the corresponding angles theorem be if a transversal intersects two parallel lines, the pairs of corresponding angles are congruent.

Answer 27

Prove: \[\angle 1 \cong \angle 3\]

.... since 1+2 = 180 ... and 3 +2 =180

Answer 28

Prove the Alternate Interior Angle theorem instead.

You can use the Corresponding Angles Postulate ... and VAT

Answer 29

Ahhhhh I understand now how they are congruent.

Answer 30

Ok so I can use the same statement for VAT and CAP?

Answer 31

Given: \(l \parallel m\) and \(n\) is transversal.

Prove: \(\angle1\cong\angle2\)

Answer 32

\(\angle1\cong\angle3\) .... Vertical Angles

\(\angle2\cong\angle3\) ... Corresponding angles

so, \(\angle1\cong\angle2\) ..... transitive property

Answer 33

which is the third one for?

Answer 34

1 and 2 are alternate interior angles

Answer 35

AHhhhhhhh ok i see i see

Answer 36

Ok I got it down.

Answer 37

So we completes the first two correct?

Answer 38

completed

Answer 39

yep

Answer 40

Triangle sum theorem:

Prove: \(m\angle B+ m\angle C+m\angle BAC=180\) degrees

we need to construct a line PQ passing thru point A parallel to BC, such that P-A-Q.