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l 1
l 2
l 3
Equilateral triangle Three lines of symmetry Order 3
l n
Circle Infinite lines of symmetry Order infinite
l 1
l 2
Rhombus Two line of symmetry Order 2
Think and Answer
Discuss the lines of symmetry and order of rotational symmetry of the following figure:
Practice Time 11B
1. Find the order of rotational symmetry of the following figures:
(a) (b) (c) (d) (e)
2. For each of the following figures, mark the centre of rotational symmetry with a cross (×) and
state the order of the rotational symmetry:
(a) (b) (c) (d)
Mathematics-7 250
