Question

Name two geometrical figures which have both line and rotational symmetry. 4. If a figure has two or more lines of symmetry, should it have rotational symmetry of more than 1? Give examples. 5. After rotating 60° about a centre, a figure looks exactly the same as its original. At what other angle will this happen for the figure? 6. Can we have a rotational symmetry of order more than 1 whose angle of rotation is (a) 45° (b) 17°
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Answer 1

Answer:

Two figures that have both line symmetry and rotational symmetry are: Circle and Square

Answer 2

Answer:

3. Circle, square

4. yes. Eg. square has 4 lines of symmetry: it has rotational symmetry of 2, circle has infinite lines of symmetry: it has rotational symmetry of 360

5. if it happens at 60°, then it will happen at its double that is 120°. After that it will happen at 180° an so on

6. a. yes

   b. no