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# RD Sharma Solutions -Ex-17.4, Symmetry, Class 6, Maths Class 6 Notes | EduRev

## RD Sharma Solutions for Class 6 Mathematics

Created by: Abhishek Kapoor

## Class 6 : RD Sharma Solutions -Ex-17.4, Symmetry, Class 6, Maths Class 6 Notes | EduRev

The document RD Sharma Solutions -Ex-17.4, Symmetry, Class 6, Maths Class 6 Notes | EduRev is a part of the Class 6 Course RD Sharma Solutions for Class 6 Mathematics.
All you need of Class 6 at this link: Class 6

Q. 1. The total number of lines of symmetry of a scalene triangle is

Sol: (d) none of these

This is because the line of symmetry of a scalene triangle is 0.

Q. 2. The total number of lines of symmetry of an isosceles triangle is

Sol: (a) 1

Q. 3. An equilateral triangle is symmetrical about each of its

Sol: (d) all the above

In equilateral triangle altitudes, angle bisectors and medians are all the same.

Q. 4. The total number of lines of symmetry of a square is

Sol: (d) 4

Q. 5. A rhombus is symmetrical about

Sol: (a) Each of its diagonals

Q. 6. The number of lines of symmetry of a rectangle is

Sol: (b) 2

Q. 7. The number of lines of symmetry of a kite is

Sol: (b) 1

Q. 8. The number of lines of symmetry of a circle is

Sol: (d) Unlimited

A circle has an infinite number of symmetry all along the diameters. It has an infinite number of diameters

Q. 9. The number of lines of symmetry of a regular hexagon is

Sol: (c) 6

Q. 10. The number of lines of symmetry of an n â€“ sided regular polygon is

Sol: (a) n

The number of lines of symmetry of a regular polygon is equal to the sides of the polygon. If it has â€˜nâ€™ number of sides, then there are â€˜nâ€™ lines of symmetry

Q. 11. The number of lines of symmetry of the letter O of the English alphabet is

Sol: (c) 2

Q. 12. The number of lines of symmetry of the letter Z of the English alphabet is

Sol: (a) 0

Z has no line of symmetry

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