Name ——————————————————————— Date ————————————
LESSON
Practice B
9.6 For use with the lesson “Identify Symmetry“
Determine whether the figure has rotational symmetry. If so, describe the
rotations that map the figure onto itself.
1. 2. 3. 4.
Does the figure have the rotational symmetry shown? If not, does the
figure have any rotational symmetry?
5. 1208 6. 1808 7. 458
8. 368 9. 1808 10. 908
Copyright © Houghton Mifflin Harcourt Publishing Company. All rights reserved.
LESSON 9.6
In Exercises 11–16, draw a figure for the description. If not possible, write
not possible.
11. A triangle with exactly two lines 12. A quadrilateral with exactly two lines
of symmetry of symmetry
13. A pentagon with exactly two lines 14. A hexagon with exactly two lines
of symmetry of symmetry
Geometry
9-78 Chapter Resource Book
Name ——————————————————————— Date ————————————
LESSON
Practice B continued
9.6 For use with the lesson “Identify Symmetry“
15. An octagon with exactly two lines 16. A quadrilateral with exactly four lines
of symmetry of symmetry
17. Paper Folding A piece of paper is folded in
half and some cuts are made, as shown. Which
figure represents the piece of paper unfolded?
A. B. C. D.
In Exercises 18 and 19, use the following information.
Taj Mahal The Taj Mahal, located in India, was built
between 1631 and 1653 by the emperor Shah Jahan as
a monument to his wife. The floor map of the Taj Mahal
is shown.
18. How many lines of symmetry does the floor
Copyright © Houghton Mifflin Harcourt Publishing Company. All rights reserved.
map have?
19. Does the floor map have rotational symmetry?
LESSON 9.6
If so, describe a rotation that maps the pattern
onto itself.
In Exercises 20 and 21, use the following information.
Drains Refer to the diagram below of a drain in a sink.
20. Does the drain have rotational symmetry? If
so, describe the rotations that map the image
onto itself.
21. Would your answer to Exercise 20 change
if you disregard the shading of the figures?
Explain your reasoning.
Geometry
Chapter Resource Book 9-79
