Rotation Symmetry Practice - Tetrahedron

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Question 2

Draw out all the axes of rotational symmetry for a tetrahedron. What is the total number of axes?

tetrahedron

Answer

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Select and check your answer...

A. 5
B. 7
C. 9
D. 11

Step by Step Solution

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    Step 1

    1st axis of rotational symmetry

    This is the 1st axis...
    Order 3

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    Step 2

    second axis of rotational symmetry

    This is the 2nd axis...
    Order 3

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    Step 3

    third axis of rotational symmetry

    This is the 3rd axis...
    Order 3

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    Step 4

    fourth axis of rotational symmetry

    This is the 4th axis...
    Order 3

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    Step 5

    fifth axis of rotational symmetry

    This is the 5th axis...
    Order 2

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    Step 6

    sixth axis of rotational symmetry

    This is the 6th axis...
    Order 2

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    Step 7

    seventh axis of rotational symmetry

    This is the 7th axis...
    Order 2

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    Step 8

    In total, there are 7 axis of rotational symmetry for a tetrahedron.

    Clearly, the answer is B.

    All 7 axes for a tetrahedron
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