6.
Determine whether each statement is “always true”, “sometimes true” or “never true"
Write AT if it is always true, ST if it is sometimes true, and NT if it is never true. Write your
answer on your MATH NOTEBOOK.
1. An angle measuring less than 180 degrees is acute.
2. A ray can be extended on both sides.
3. All right angles measure 90 degrees.
4. Four points lie on the same plane.
5. Three lines intersect at one point.
Two perpendicular lines intersect at exactly one point.
7. The measure of an obtuse angle is greater than the measure of a right angle.
8. A plane contains three points.
9. A line can be drawn through two points.
10. Two lines that are perpendicular intersect at exactly two points.
11. Two right angles are congruent.
12. Ray have two endpoints
13. Segment have exact measurement
14. An angle measuring greater than 90 degrees is obtuse.
15. A line contains four non - coplanar points.​