Question

Geometry help (part 2)
checking if im correct

Answer 1

Adam and Darius provide the following proofs for vertical angles to be equal:

Answer 2

Adam's proof: angle 1 + angle 2 + angle 3 + angle 4 = 360°
Therefore, angle 2 + angle 3 = 180° (t is a straight line)
Hence, angle 1 = angle 3 (Transitive Property of Equality)

Darius' proof: angle 1 + angle 4 = 180° (t is a straight line)
angle 1 + angle 2 = 180° (PQ is a straight line)
Therefore, angle 1 + angle 2 = angle 1 + angle 4 (Transitive Property of Equality)
Hence, angle 2 = angle 4 (Subtraction Property of Equality)

Which statement is correct?

Only Adam's proof is correct.
Both Adam's and Darius' proofs are correct.
Both Adam's and Darius' proofs are incorrect.
Only Darius' proof is correct.

Answer 3

I believe its B

Answer 4

Adam's proof lacks something. He didn't state the reason "angle 1 + angle 2 + angle 3 + angle 4 = 360° ngle 1 + angle 2 + angle 3 + angle 4 = 360° ":)

Answer 5

Darn im always off a little

so its D then? thank you for taking your time to help

Answer 6

@peachpi

Answer 7

yes I agree with @mathway. Only the second one has all the steps

Answer 8

thank youuu

Answer 9

It is D. Again, sorry for replying slow.

Answer 10

not slow at all I am greatfull

Answer 11

Anyway, great job! You just need a little practice and you'll realize that proving isn't that hard. :)