The DAV Class 7 Maths Book Solutions and **DAV Class 7 Maths Chapter 13 Worksheet 4** Solutions of Symmetry offer comprehensive answers to textbook questions.

## DAV Class 7 Maths Ch 13 WS 4 Solutions

Question 1.

How many lines of symmetry will a regular heptagon (seven sided polygon) have?

Answer: Regular heptagon (Seven sided polygon) has 7 lines of symmetry as it has 7 sides.

Question 2.

How many lines of symmetry will a regular octagon (eight sided polygon) have?

Answer:

Octagon has 8 sides. Therefore, it will have eight lines of symmetry.

Question 3.

Draw a square and draw its lines of symmetry.

Answer:

2 lines of symmetry are through its two pairs of opposite comers.

2 lines of symmetry are the perpendicular bisectors of opposite pairs of parallel sides.

∴ Total number of lines of symmetry of a square is 4.