Page 79 - Math Course 2 (Book 2)
P. 79
Transformations: Reflected Images
Draw Lines of Symmetry Draw Lines of Symmetry
Example Determine how many lines of symmetry an
equilateral triangle has.
A. 1
Determine how many lines of symmetry a regular B. 2
pentagon has. Then determine whether a regular C. 3
pentagon has a point of symmetry. D. 6
A regular pentagon has five lines of symmetry.
Answer
A point of symmetry
is a point that is a
common point of
reflection for all points Does an equilateral triangle have a point of
on the figure. There symmetry?
is not one point of
symmetry in a regular A. yes
pentagon. B. no
Answer
Answer 5; no
Your Turn!
Use Reflections
BILLARDS left corner reflected
Dave challenged Juan to hit the 8 ball in the left pocket pocket
corner pocket. Should Juan try to have the 8 ball hit
the midpoint between the side pocket and the right
corner pocket?
A. yes
B. no
Answer
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