1. If the three points are collinear, then they do not determine a plane.
a. converse b. inverse c. contrapositive
d. conditional

2. If the shape is a plane, then the three points are non-collinear. a. converse b. inverse c. contrapositive d. conditional

3. If the shape is not a plane, then the three points are collinear.
a. converse b. inverse c. contrapositive
d. conditional

Numbers 4-6. A rectangle has four right angles. If a shape is a rectangle, then it has four right angles.

4. If the shape has four right angles, then it is a rectangle.
a. converse b. inverse c. contrapositive
d. conditional

5. If the shape does not have four right angles, then it is not a rectangle.
a. converse b. inverse c. contrapositive
d. conditional

6. If the shape is not a rectangle, then it does not have four right angles.
a. converse b. inverse c. contrapositive
d. conditional

Numbers 7-9. Perpendicular lines intersect. If the lines are perpendicular, then they intersect.

7. If the lines do not intersect, then they are not perpendicular.
a. converse b. inverse c. contrapositive
d. conditional

8. If the lines are not perpendicular, then they do not intersect.
a. converse b. inverse c. contrapositive
d. conditional

9. If the lines intersect, then they are perpendicular.
a. converse b. inverse c. contrapositive
d. conditional

Numbers 10-12. A triangle is a polygon. If a shape is a triangle, then it is a polygon.

10. If a shape is not a triangle, then it is not a polygon.
a. converse b. inverse c. contrapositive
d. conditional

11. If a shape is a polygon, then it is a triangle.
a. converse b. inverse c. contrapositive
d. conditional

12. If a shape is not a polygon, then it is not a triangle.
a. converse b. inverse c. contrapositive
d. conditional

Numbers 13-15. Vertical angles are congruent. If the angles are vertical, then they are congruent.

13. If the angles are not congruent, then they are not vertical.
a. converse b. inverse c. contrapositive
d. conditional

14. If the angles are congruent, then they are vertical.
a. converse b. inverse c. contrapositive
d. conditional

15. if the angles not vertical, then they are not congruent.
a. converse b. inverse c. contrapositive
d. conditional ​