Page 256 - Start Up Mathematics_6

6. Amongst the given figures, the one having maximum lines of symmetry is:

(a) → (b) (c) (d)
7. Which of the two figures are mirror images of each other?

(a) (b) (c) (d)

8. The number of lines of symmetry which a pentagon cannot have is:
(a) 0 (b) 1 (c) 3 (d) 5

solve Mentally
True or False

1. The letter A has only 1 line of symmetry.

2. A straight line has 2 lines of symmetry.
3. The figure on any one side of a line of symmetry is the mirror image of the figure on the other
side of it.
4. The line joining any point to its image is bisected by the line of symmetry (mirror line).

5. All right triangles have one line of symmetry.

Fill in the Blanks
1. Line symmetry is also known as _____________ symmetry.

2. A hexagon having more than two lines of symmetry must be _____________.
3. The number of line(s) of symmetry in the word MOM is _____________.

4. An arrowhead as shown in the adjoining figure has
_____________ line of symmetry.
5. The word formed using the indicated line of symmetry in ‘⊃∪ ∧ ’ is _____________.
6. The addition symbol has _____________ lines of symmetry.

Answer in One Word or a Line
1. Name a geometrical figure which has no line of symmetry.

2. Which letters of English alphabet have two lines of symmetry?
3. Is mirror image of a figure related to symmetry? Explain.
4. How many lines of symmetry does a rhombus have?

5. How many lines of symmetry does a parallelogram have?

let’s evaluate

1. The following letters of English alphabet are symmetrical. Draw line(s) of symmetry in each
case.

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