7. Which angles are linear pair?

A. ∠ABD and ∠CBD

B. ∠ABD and ∠EBD

C. ∠1 and ∠3

D. ∠2 and ∠4

8. If ∠ABC is a straight angle, which angle is congruent to ∠CBE?

A. ∠2 B. ∠3 C. ∠ABE D. ∠DBC

9. When two lines are perpendicular, what kind of angles do they create?

A. 0° angles C. 180° angles

B. 90° angles D. 360° angles

For numbers 10 – 11, please refer to illustration 5.

10.Lines b and c are parallel lines. Which of the following statement is true about

parallel lines?

A. Parallel lines do not meet. b

B. Parallel lines are intersecting lines.

C. Parallel lines have a point of intersection. c

D. All of the above Illustration 5

11.How do you describe the lines?

A. Line b is parallel to line c.

B. Line b is intersecting line c.

C. Line c is intersecting line b.

D. Line c is perpendicular to line b.

For numbers 12 and 13, please

refer to illustration 6.

12.What is the measurement of the angle adjacent to ∠1?

A. 30°

B. 70°

C. 130°

D. 170°

**Answer:**

7.a 8.d 9.b 10.b 11.c 12.d