Question

http://prntscr.com/cn79kw
Are these two right?
The other options are definition of complementary angles and angle congruence postulate.

Answer 1

Which boxes were already filled in by the book? Which were left empty? Were the empty ones the ones you circled in red?

Answer 2

yes

Answer 3

The empty ones are in red

Answer 4

*were

Answer 5

You have them mixed up. The first box should be "Linear Pair Postulate"

http://planetmath.org/linearpair

if you have a linear pair of angles, then the angles are supplementary

Answer 6

If you know two angles are supplementary, then they add to 180 degrees

Answer 7

Okay thank you

Answer 8

no problem