Name _______________________________________ Date __________________ Class __________________
3.1-2 Practice
Lines and Angles
Complete the statements by matching the correct term.
1. ______________________ lines are not coplanar. They are not parallel
and do not intersect.
2. Parallel planes are planes that do not ______________________.
3. Perpendicular lines () intersect at _______________________ angles.
parallel
skew
90 or right
intersect
4. ____________________ lines (||) are coplanar and do not intersect.
For Exercises 5–8, identify each of the following in the figure.
5. a pair of parallel segments
_________________________
6. a pair of skew segments
_________________________
7. a pair of perpendicular segments
_________________________
8. a pair of parallel planes
_________________________
In Exercises 13–18, give one example of
each from the figure.
13. a transversal
________________________
16. alternate interior angles
________________________
14. parallel lines
15. corresponding angles
________________________
17. alternate exterior angles
________________________
________________________
18. same-side interior angles
________________________
19. Sudeep walks back and forth along parallel segments
in his yard. Then he walks back diagonally across the
yard. Identify each of the following in the figure.
a. a transversal
________________________________________
c. alternate interior angles
________________________________________
b. corresponding angles
_________________________________________
d. alternate exterior angles
_________________________________________
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Holt McDougal Geometry
Name _______________________________________ Date __________________ Class __________________
Find each angle measure.
6. m1 _______________________
7. m2 _______________________
8. mABC _______________________
9. mDEF _______________________
10. Ocean waves move in parallel lines toward the shore.
The figure shows Sandy Beaches windsurfing across
several waves. For this exercise, think of Sandy’s wake
as a line. m1  (2x  2y) and m2  (2x  y).
Find x and y.
x_________
y_________
Give two examples of each kind of angle pair in the figure.
15. alternate interior angles
_______________________________
16. alternate exterior angles
______________________________
17. same-side interior angles
_____________________________
Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.
Holt McDougal Geometry