Page 157 - classs 6 a_Neat

Alert!
1. The length of the image remains the same as the length of the object.
2. The distance of the image from the mirror is equal to the distance of the object from the mirror.
3. The reflection of an object in a mirror looks laterally inverted.

EXERCISE-10
1. Identify each of the following figures as symmetrical or non-symmetrical.
Scalene Triangle Irregular Polygon a. b.

Shapes and Figures with More than One Line of Symmetry

c. d. e.

2. Draw the lines of symmetry for the following letters of the English alphabet.
a. b.

An equilateral triangle has A square has four lines of A rectangle has two lines of
three lines of symmetry. symmetry. symmetry.

c. d.

A regular hexagon has three A circle has infinite A pentagon has five lines
lines of symmetry. lines of symmetry. of symmetry.
3. In the following figures, the dotted line is the line of symmetry. Copy and
complete each figure so that the figure is symmetrical.
Mirror or Reflection Symmetry a. b. d. d. e.

A A

B B

C C

D D

4. How many lines of symmetry do the following figures have?
a. Circle. d. Parallelogram.
b Pentagon. e. Scalene triangle.
c. Equilateral triangle.