1. What is the measure of the angle formed by perpendicular lines?

A. 180° B. 45° C. 60° D. 90°

2. Which of the following tools is needed in geometric construction?

A. triangle B. protractor C. straightedge D. square

3. What do you need to draw first when you use geometric construction to draw perpendicular lines?

A. an arc C. a line and a dot somewhere on the line

B. a dot D. a line and a dot not on the line

4. When bisecting an angle, the straightedge should be used to:

A. mark the point M

B. copy the angle with the arc

C. measure the AOB

D. connect point M and vertex O

5. What geometric construction has been done in the figure?

A. bisecting an angle

B. bisecting a line segment

C. construction of parallel lines

D. copying an angle

6. Which is the other tool needed in geometric construction?

A. compass B. square C. triangle D. protractor

7. What do you need to draw first when you use geometric construction to draw parallel lines?

A. a dot C. a line and a point on the line

B. a line and a point outside the line D. a line

8. An angle bisector is a line that bisects an angle into two _____ parts?

A. greater B. unequal C. equal D. none of the above

9. Which point is most likely the midpoint of the line segment?

A. point A B. point B C. point C D. point D

10. _______ is a line that cuts a line segment into to equal parts at 90°.

A. Midpoint B. Parallel lines C. Angle bisector D. Perpendicular Bisecte​