Class 7 Exam > Class 7 Videos > Mathematics (Maths) Class 7 (Old NCERT) > Examples: Symmetry & Lines of Symmetry- 1
Examples: Symmetry & Lines of Symmetry- 1 Video Lecture | Mathematics (Maths) Class 7 (Old NCERT)
FAQs on Examples: Symmetry & Lines of Symmetry- 1 Video Lecture - Mathematics (Maths) Class 7 (Old NCERT)
| 1. What is symmetry? |  |
Ans. Symmetry is a concept in mathematics that refers to an object or shape being identical or nearly identical when divided into equal parts. It means that one half of the object mirrors the other half.
| 2. What are lines of symmetry? | |
Ans. Lines of symmetry are imaginary lines that can be drawn on a shape or object to divide it into two identical or nearly identical halves. These lines can be vertical, horizontal, or diagonal.
| 3. How can we determine the number of lines of symmetry in a shape? | |
Ans. To determine the number of lines of symmetry in a shape, we can visually examine the shape and look for lines that divide it into two identical halves. If no lines can be found, the shape has no lines of symmetry. If one line can be found, the shape has one line of symmetry, and so on.
| 4. Can all shapes have lines of symmetry? | |
Ans. No, not all shapes have lines of symmetry. Shapes like circles, for example, do not have any lines of symmetry because they cannot be divided into equal halves that are identical.
| 5. How can symmetry be useful in real life? | |
Ans. Symmetry is used in various fields such as art, architecture, and design. It helps create balance and harmony in visual compositions. In nature, symmetry can be seen in the arrangement of petals in a flower or the wings of a butterfly. Understanding symmetry can also help in problem-solving and pattern recognition.
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