# Which phrase accurately completes the proof

August 30, 2017

Question
Summary – 03.01 Line and Angle Proofs

Question 1(5 points)

Kelly and Daniel wrote the following proofs to prove that vertical angles are congruent. Who is correct ?

Kelly’s Proof

Statement

Justification

?2 =?4

Vertical angles are congruent.

?1 =?3

Vertical angles are congruent.

Vertical Angles are congruent.

Vertical Angle Theorem

Daniel’s Proof

Statement

Justification

?1 ?2 = 180°

Definition of Supplementary Angles

?1 ?4 = 180°

Definition of Supplementary Angles

?1 ?2 =?1 ?4

Transitive Property of Equality

?2 =?4

Subtraction Property of Equality

(5 points)

Question 1 options:

1)

Both Kelly and Daniel are correct.

2)

Neither Kelly or Daniel is correct.

3)

Kelly is correct, but Daniel is not.

4)

Daniel is correct, but Kelly is not.

QUESTION 2:

The following is an incomplete paragraph proving that?WRS??VQT, given the information in the figure where https://njvs:

Which phrase accurately completes the proof? (5 points)

1)

?SQU??VQT

2)

?SQU??WRS

3)

?WRS??VQT

4)

?WRS??ZRT

Question 3

The following is an incorrect flowchart proving that point L, lying on

Get a 30 % discount on an order above \$ 100
Use the following coupon code:
RESEARCH
Positive SSL