Question

Below is a two-column proof incorrectly proving that the three angles of ΔPQR sum to 180°:Statements Reasons
Draw line ZY parallel to segment PQ Construction
m∠ZRP + m∠PRQ + m∠QRY = m∠ZRY Angle Addition Postulate
∠ZRP ≅ ∠RPQ Alternate Interior Angles Theorem
∠QRY ≅ ∠PQR Alternate Interior Angles Theorem
m∠RPQ + m∠PRQ + m∠PQR = m∠ZRY Substitution
m∠ZRY = 180° Definition of Supplementary Angles
m∠RPQ + m∠PRQ + m∠PQR = 180° Substitution

Which statement will accurately correct the two-column proof?

Answer 1

please reply ASAP
Please Help!

Answer 2

@dpalnc

Answer 3

@calcmathlete

Answer 4

plz help!

Answer 5

@KingGeorge

Answer 6

@phi

Answer 7

@e.mccormick

Answer 8

@ganeshie8

Answer 9

can u help me? @ganeshie8

Answer 10

got options ?

Answer 11

yes i will put them on now

Answer 12

A.The measure of angle ZRY equals 180° by definition of a straight angle.
B.Angles QRY and PQR should be proven congruent before the construction of line ZY.
C.The three angles of ΔPQR equal 180° according to the Transitive Property of Equality.
D.Line ZY should be drawn parallel to segment QR.

Answer 13

whats your best guess ?

Answer 14

I'm confused because i usually have a pic on my assignments, but here i don't

Answer 15

Clearly B and D are nonsense - so eliminate them first

Answer 16

Answer must be between A and C

Answer 17

srry to ask , but how are u sure

Answer 18

i really want to understand and that is why I'm asking

Answer 19

about answer choice c

Answer 20

srry i meant D

Answer 21

good :) we can eliminate D as the proof is not affected by at which vertex make the construction

Answer 22

oh so it doesn't matter?

Answer 23

ok i understand now

Answer 24

so is it A

Answer 25

r u there?

Answer 26

its between A and C, one sec...

Answer 27

I think you're right ! it should be A

Answer 28

thank u how should i give medals to people?

Answer 29

click on "Best Response" button on the right side of comment

Answer 30

oh ok and i got an A thank you!!!!

Answer 31

is there anything else i need to know? its because I'm new here

Answer 32

are you doing an online exam ?

Answer 33

when you have time, go through the code of conduct page
http://openstudy.com/code-of-conduct

Answer 34

Happy openstudying !!

Answer 35

i had an assignment to turn in to my teacher tomorrow and i think i got an A because i thought my answer was reasonable and i could show my work on why i got that answer.

Answer 36

math class is the best!

Answer 37

sounds good :)

Answer 38

:)
i hope I'm right

Answer 39

good luck !

Answer 40

thank you for helping me!