Question

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

1. An equilateral triangle 
2.  An isosceles triangle 
3.  A scalene triangle 
4.  A square 
5.  A rectangle 
6.  A rhombus 
7.  A parallelogram 
8.  A quadrilateral 
9.  A regular hexagon 
10.  A circle

Answer 1

(a) There are 3 lines of symmetry in an equilateral triangle.

(b)There is only 1 line of symmetry in an isosceles triangle.

(c) There is no line of symmetry in a scalene triangle.

(d)There are 4 lines of symmetry in a square.

(e) There are 2 lines of symmetry in a rectangle.

(f)There are 2 lines of symmetry in a rhombus.

(g) There is no line of symmetry in a parallelogram.

(h) There is no line of symmetry in a quadrilateral.

(i) There are 6 lines of symmetry in a regular hexagon.

(j)There are infinite lines of symmetry in a circle. Some of these are represented as follows