# Exercise 14.2 Symmetry -NCERT Solutions Class 7

Exercise 14.2

## Chapter 14 Ex.14.2 Question 1

Which of the following figures have rotational symmetry of order more than \(1\):

**Solution**

**Video Solution**

**What is known?**

Figures

**What is unknown?**

The figures have rotational symmetry of order more than \(1\).

**Reasoning: **

To solve this question, remember the concept of rotational symmetry. Rotational symmetry is when an object is rotated around a center point (turned) a number of degrees and the object appears the same. The order of symmetry is the number of positions the object looks the same in a \(360^\circ\) rotation.

**Steps:**

Rotational symmetry of order more than one are: (a), (b), (c), (d), (e) and (f) because in these figures, in a complete turn more than one number of times an object looks exactly the same.

## Chapter 14 Ex.14.2 Question 2

Give the order of rotational symmetry for each figure:

**Solution**

**Video Solution**

**What is known?**

Figures.

**What is unknown?**

The order of rotational symmetry

**Reasoning: **

To solve this question, remember the concept of rotational symmetry. Rotational symmetry is when an object is rotated around a centre point (turned) a number of degrees and the object appears the same. The order of symmetry is the number of positions the object looks the same in a \(360^\circ \) rotation.

**Steps:**

Figure | Order of Rotational Symmetry |

a | 2 |

b | 2 |

c | 3 |

d | 4 |

e | 4 |

f | 5 |

g | 6 |

h | 3 |