Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

Are you looking for DAV Maths Solutions for class 7 then you are in right place, we have discussed the solution of the Secondary Mathematics book which is followed in all DAV School. Solutions are given below with proper Explanation please bookmark our website for further updates!! All the Best !!

Chapter 13 Worksheet 2 | Symmetry | Class-7 DAV Secondary Mathematics

Unit 13 Worksheet 2 || Symmetry

1. Find the line of symmetry of any three line segments on different sheets of paper.

Answer 1.

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

2. Check If the dotted lines are the line of symmetry of the given line segments.

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

Answer 2:

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

3. Lines I and m are the lines of symmetry of the line segments XY and YZ respectively. If XA = 4 cm and YZ = 6 cm, find AY, YB, XZ.

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

Answer 3:

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

4. Find the line of symmetry of the following angles on different sheets of paper.

(a) 60° (b) 150° (C) 45°

Answer 4:

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics
Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

5. If dotted lines represent the lines of symmetry of the given angles, find x in each.

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

Answer 5:

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

6. The dotted line represents the line of symmetry of the Isosceles &ABC, where AB = AC. If LABC = 40° and OB = 4.5 cm, find—

(a) angle BAO (b) Measure of OC. Give reasons.

Answer 6:

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

7. Construct an equilateral triangle ABC. Find all its lines of symmetry.

Answer 7:

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

8. will a scalene triangle have any line of symmetry?

Answer 8: No, the Scalene triangle has no line of symmetry.

9. Under what circumstances will a right angled triangle have a line of symmetry? Give reasons.

Answer 9:

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

10. Can a right angled triangle have more than one line of symmetry under any circumstances?

Answer 10:

Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics

1 thought on “Chapter 13 | Symmetry | Class-7 DAV Secondary Mathematics”

Leave a Reply

%d bloggers like this: