Object Reflections and Symmetry
Object Reflections and Symmetry
Module 9
HigherEdServices.org
Session Topics
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Reflection of an object
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Planes of symmetry
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Reflections through rotations
Reflection
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Each point, A
,
is associated with an image point, A
’,
such that the
plane, P
,
is a perpendicular bisector of the line segment AA
’.
A reflection across a
plane displays the
object’s mirror image.
Plane of Symmetry
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Reflection through Rotation
For a symmetric object,
the mirror image can
occur by rotating one
side of the object
180°about an axis of
rotation that's in the
plane of symmetry.
Multiple Planes of Symmetry
Many objects have multiple planes of symmetry
Infinite
5
2
Course Software…..
●
Work through the Reflections and Symmetry
software module
Object Reflections and Symmetry
Homework …
●
Complete the following pages in Module 9
●
reflx/sym-
–
2 - 5
–
8 - 9
–
12 - 15
Delve into the intriguing world of object reflections and symmetry in this educational module. Explore topics such as reflections of objects, planes of symmetry, and reflections through rotations. Discover how multiple planes of symmetry can exist in various objects and learn to work with reflection and symmetry software. Complete engaging homework exercises to reinforce your understanding. Enhance your knowledge of symmetry and reflections with practical examples and visual aids.
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Presentation Transcript
Object Reflections and Symmetry Module 9 HigherEdServices.org
Session Topics Reflection of an object Planes of symmetry Reflections through rotations
A reflection across a plane displays the object s mirror image. Reflection Reflection Plane Each point, A, is associated with an image point, A , such that the plane, P, is a perpendicular bisector of the line segment AA .
Plane of Symmetry Plane of symmetry occurs if the parts of the object on both sides of the plane are mirror images of each other.
Reflection through Rotation For a symmetric object, the mirror image can occur by rotating one side of the object 180 about an axis of rotation that's in the plane of symmetry.
Multiple Planes of Symmetry Many objects have multiple planes of symmetry Infinite 5 2
Course Software.. Work through the Reflections and Symmetry software module
Object Reflections and Symmetry Homework Complete the following pages in Module 9 reflx/sym- 2 - 5 8 - 9 12 - 15
