Question

HELP PLEASE! I FAN+MEDAL+TESTIMONIAL

Derek wrote the following paragraph proof for the Vertical Angles Theorem:

Line segment NT intersects line segment MR forming four angles. Angles 1 and 3 are vertical angles. Angles 2 and 4 are vertical angles.

The sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees by the definition of supplementary angles. The sum of angle 1 and angle 4 is equal to the sum of angle 3 and angle 4 by the transitive property of equality. Angle 1 is equal to angle 3 _____________________.

Which phrase completes the proof?

Answer 1

Which phrase completes the proof?

by construction using a straightedge
by the definition of a perpendicular bisector
by the subtraction property of equality
by the vertical angles theorem

Answer 2

@Preetha @ganeshie8 @NekoMatt @myininaya @johnweldon1993 @Mehek14 @johnweldon1993 @jhonyy9 @surjithayer @uri @Daniellelovee @rishavraj

Answer 3

please please help me

Answer 4

What is the relation of <1 and <3

Answer 5

umm idk

Answer 6

I think it's C but I'm not completely sure

Answer 7

No not C. . .

Answer 8

Then D

Answer 9

Yep

Answer 10

Omg thank you so much, can you help me with one more?

Answer 11

I sort of have to go . . . :/

Answer 12

Ok, thank you very much for your help

Answer 13

You're welcome ^_^