a.
To write the number of symmetries which are self-inverse out of four symmetries in previous exercise.
a.
Answer to Problem 5E
There are two symmetries which are self-inverse.
Explanation of Solution
Given information:
A transformation that is its own inverse is called a self-inverse.
There are two symmetries which are self-inverse. And the symmetry which are self-inverse are one at the identity and one at the rotation of
| I |
I | I I |
b.
To write the number of symmetries which areself-inverse out of four symmetries of the rectangle.
b.
Answer to Problem 5E
All four symmetries of the rectangle are self-inverse
Explanation of Solution
Given information:
A transformation that is its own inverse is called a self-inverse.
All four symmetries of the rectangle are self-inverse because in each symmetry the figure reflects onto itself.
Chapter 14 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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