Q. 1205.0( 2 Votes )

# Does the Fig. 12.28 have rotational symmetry?

Answer :

The above figure does not show rotational symmetry as one part of the figure is not coloured while the other three parts are darken.

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Fill in the blanks to make the statements true.

Each of the letters H, N, S and Z has a rotational symmetry of order _________.

NCERT - Exemplar MathematicsGive the order of rotational symmetry for each figure:

State whether the statements are True or False.

Rotation turns an object about a fixed point which is known as centre of rotation.

NCERT - Exemplar MathematicsState whether the statements are True or False.

Order of rotational symmetry of a rhombus is four.

NCERT - Exemplar MathematicsState whether the statements are True or False.

Order of rotational symmetry of a semi circle is two.

NCERT - Exemplar MathematicsState whether the statements are True or False.

After rotating a figure by 120° about its centre, the figure coincides with its original position. This will happen again if the figure is rotated at an angle of 240°.

NCERT - Exemplar MathematicsTell whether each figure has rotational symmetry. Write yes or no.

(a) (b)

(c) (d)

NCERT - Exemplar MathematicsTell whether each figure has rotational symmetry or not.

A. B.

C. D.

E. F.

NCERT - Exemplar MathematicsFill in the blanks to make the statements true.

Order of rotational symmetry of is __________.