Question

Hello! I need some help checking my work.

1. Which term best represents the intersection of two walls next to each other in a room?

A. angle
B. plane
C.point
D.line
Answer: Angle? but i'm not sure...

2. Which statement is true about the segment connecting points B and C?

http://i32.photobucket.com/albums/d19/raviduser/qeqeqe_zpsygdciqxl.png

A. The segment has a finite length that can be measured.
B. There are only two points on the entire segment.
C. The segment extends infinitely in both directions.
D.There is only one way to name the segment.

Answer: D??

Answer 1

for 2nd one i think it will be A

Answer 2

for first one it will be D but m not sure

Answer 3

because intersection of two planes is a line