Platforms
Which diagram represents a line of symmetry for the regular pentagon?
The regular octagon has -fold reflectional symmetry.
The smallest angle of rotational symmetry for the decagon is degrees.
The rectangle has rotational symmetry of order .
The decagon has a -fold reflectional symmetry.
The rectangle's rotational symmetry occurs for angles of degrees.
The order of rotational symmetry for the decagon is .
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