1. 
Two lines never intersect. What can we conclude about them? > They are parallel and not skew

2. 
Any three points areā¦ > coplanar but not necessarily collinear

3. 
How many coordinates are necessary to specify a point on a plane? > 3

4. 
When two planes intersect in threedimensional space, which of the following is formed? > A line

5. 
How many lines can a single plane contain? > 0

6. 
Which of the following points lies on both plane and plane ? > D

7. 
Which of the following points are on neither plane nor on plane ?
> D

8. 
What is the midpoint of AC? > (1, 1)

9. 
What is the length of AB? > 3

10. 
The midpoint of AD is B. What are the coordinates of D? > (3, 4)
