# NCERT Class 6 Mathematics Chapter 9 Symmetry Solutions: In-Text and Exercise Questions Explained | SwaVid

This document contains real questions from NCERT Class 6 Mathematics textbook, Chapter 9 'Symmetry', along with step-by-step worked solutions. The quest...

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# Symmetry

## Find the gaps before this chapter finds them for you.

## Related chapters

Chapter 9 · Class 6 Mathematics

This document contains real questions from NCERT Class 6 Mathematics textbook, Chapter 9 'Symmetry', along with step-by-step worked solutions. The questions include both in-text activities and end-of-chapter exercises, transcribed as closely as possible from the official textbook content.

Your study route

9.1 Line of Symmetry (In-text Questions)

Answer: Yes, most of the figures at the start of the chapter (like a leaf, butterfly, human face, star-fish, building, wheel) have lines of symmetry. A cloud, due to its irregular shape, generally does not have a line of symmetry.

Think about how you could fold each object to make both halves match perfectly.

Exercise 9.1 Line of Symmetry

9.2 Rotational Symmetry (Exercise Questions)

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- Recall the definition of a line of symmetry: a line that divides a figure into two identical halves that would perfectly overlap if folded along that line.
- Observe the figures typically presented at the start of the chapter, such as a leaf, a butterfly, a human face/mask, a star-fish, the front view of a building, and a wheel.
- For the leaf (with a mid-rib), a vertical line along the mid-rib acts as a line of symmetry.
- For the butterfly, a vertical line through its body acts as a line of symmetry.
- For the human face/mask, a vertical line through the center of the face acts as a line of symmetry.
- For the star-fish, multiple lines of symmetry can be found, typically five, passing through its center and each arm.
- For the front view of a building, a vertical line through its center often acts as a line of symmetry.
- For a wheel, it has many lines of symmetry, passing through its center.
- Consider the picture of a cloud. Clouds usually have irregular shapes, so they generally do not have a definite line of symmetry.
- NCERT Class 6 Mathematics textbook: Mathematics : Chapter 9: Symmetry

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