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Figure 1.3 the symmetry content of some common objects. The symmetry content is

ID: 802096 • Letter: F

Question

Figure 1.3 the symmetry content of some common objects.

The symmetry content is referring to the 32 Point Groups/Crystal Classes.

Unsharpened Pencil
Rubber Eraser
Equilateral Triangle
Folding Chair
Card Table
45 degree Triangle
Cube (needs 2 answers)
Baseball or Tennis Ball
Pyramid

I need to know the symmetry elements, like x-fold rotation, x mirrors, and x inversions

http://www.fresnostate.edu/csm/ees/documents/Lab%201%20HW%202D%20symmetry.pdf

This link on the last page shows what I need to do.

Explanation / Answer

Shapes x fold rotation x mirror x inversion Unsharpened Pencil yes yes no Rubber Eraser yes no yes Equilateral Triangle no yes no Folding Chair yes no no Card Table no no no 45 degree Triangle no no no Cube no yes yes Baseball or Tennis Ball no yes yes Pyramid yes yes no

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