Question

Use a paragraph proof to prove the same-side interior angles theorem.

Given: segment A B is parallel to segment C D.

Prove: Same-side interior angles are supplementary

Answer 1

will u tell me numberwise which are Same-side interior angles?

Answer 2

what r the no. for them?

Answer 3

angle 6 and angle 3.

Answer 4

oh i see:)

Answer 5

lol :)
can you help me??

Answer 6

lol; Do u know that angle 4= angle 6
due to alternate angles property ?

Answer 7

oh yeah! they do dont they!

Answer 8

Alternates angles are like this

Answer 9

right...

Answer 10

So in this case they are first one
now do u know
angle 4 + angle 3 =180 degrees
due to property of angles on a straight line ?

Answer 11

yeah i knew that!

Answer 12

so u have now 2 equations: -
1.) angle 4 = angle 6
2.) angle 4 + angle 3 =180

Put angle 6 instead of angle 4 in 2nd equation becoz they are equal
So what do u get?

Answer 13

180 since angle 4 equals angle 6, right?

Answer 14

ya so
angle 6 + angle 3 =180
therefore they are supplementary.

Q.E.D.

Answer 15

GAH THANK YOU SO MUCH lol

Answer 16

lol
lol lol
lol lol lol lol
You are welcome:)

Answer 17

So u r new to OS.