Q9 of 19 Page 268

Give three examples of shapes with no line of symmetry.

The shapes which cannot be divided into two identical halves have no line of symmetry.


Three examples with no line of symmetry are:


a) A scalene triangle


b) A quadrilateral


c) An irregular polygon


More from this chapter

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7

State the number of lines of symmetry for the following figures:

a) An equilateral triangle


b) An isosceles triangle


c) A scalene triangle


d) A square


e) A rectangle


f) A rhombus


g) A parallelogram


h) A quadrilateral


i) A regular hexagon


j) A circle

 8

What letters of the English alphabet have reflectional symmetry (i.e., symmetry related to mirror reflection) about?

a) a vertical mirror


b) a horizontal mirror


c) both horizontal and vertical mirrors.

 10

What other name can you give to the line of symmetry of

a) an isosceles triangle?


b) a circle?

 1

Which of the following figures have rotational symmetry of order more than 1?