Important Questions for Class 7 Maths Chapter 12 Symmetry

Important Questions for Class 7 Maths Chapter 12: Chapter 12 "Symmetry" in Class 7 Mathematics introduces the concept of symmetry in geometric shapes and patterns. Key topics include line symmetry , where shapes have one or more lines dividing them into identical halves, and rotational symmetry , focusing on shapes that look the same after rotation around a central point.

Important Questions for Class 7 Maths Chapter 12 Overview

Importa nt Questions for Class 7 Maths Chapter 12 PDF

Importa nt Questions for Class 7 Maths Chapter 12 PDF

Important Questions for Class 7 Maths Chapter 12 with Answers

• Rotational symmetry
• Reflection symmetry
• Translation symmetry
• Glide reflection symmetry

• A scalene triangle.

• A quadrilateral

• A parallelogram

1. An equilateral triangle
2. An isosceles triangle
3. A scalene triangle
4. A square
5. A rectangle
6. A rhombus
7. A parallelogram
8. A quadrilateral
9. A regular hexagon
10. A circle
11. A regular pentagon

Answer 7:

1. In an equilateral triangle, there are three sides, and all three sides are equal. There are three lines of symmetry in an equilateral triangle, as shown in the figure below:
2. In an isosceles triangle any two sides are equal as shown in the figure below:

1. In a scalene triangle, no two sides are equal as shown in the figure below. This type of triangle has no line of symmetry.
2. In a  square, there are four lines of symmetry as shown in the figure drawn below.
3. In a rectangle, there are two lines of symmetry present, as shown in the figure given below
4. Two lines of symmetry are present in a rhombus, as shown in the figure given below. In a parallelogram, if all the sides are equal then it is a rhombus.

1. A parallelogram has no line of symmetry.
2. A quadrilateral has no line of symmetry.
3. A regular hexagon shape has six lines of symmetry as shown in the figure given below.

1. A circle has infinite lines of symmetry.
2. A regular pentagon shape has five lines of symmetry as shown in the figure given below.

Answer 9:

1. In the figure given above, it has three lines of symmetry.
2. In the figure given above, it has two lines of symmetry.
3. In the figure given above, it has three lines of symmetry.
4. In the figure given above, it has two lines of symmetry.
5. In the figure given above, it has four lines of symmetry.
6. In the figure given above, it has one line of symmetry.
7. In the figure given above, it has four lines of symmetry.
8. In the figure given above, it has six lines of symmetry.

Answer 10: The line of symmetry has a concept which is similar to the reflection of a mirror. A mirror line aid in visualisation of the line of symmetry.

Answer 11: The best illustration of rotation is the clock's movement. It is either clockwise or anticlockwise. There is no change in the object's size or shape while it is rotating. Rather, the object revolves around a stationary point. The fixed point is the centre of rotation. The angle of rotation is equal to the angle of turning. A complete turn is represented as a 360-degree rotation.

1. The given figure has a rotational symmetry of 4.
2. The given figure has a rotational symmetry of 3
3. The given figure has a rotational symmetry of 1.
4. The given figure has a rotational symmetry of 2.
5. The given figure has a rotational symmetry of 3.
6. The given figure has a rotational symmetry of 4.

Answer 12:

1. The above figure has rotational symmetry as 2.
2. The figure given above has rotational symmetry as 2.
3. The figure given above has rotational symmetry as 3.
4. The figure gives above has rotational symmetry as 4
5. The figure given above has rotational symmetry as 4.
6. The figure give above has rotational symmetry as 5.
7. The figure given above has rotational symmetry of 6.
8. The figure given above has rotational symmetry of 3.

Benefits of Using Important Questions for Class 7 Maths Chapter 12 Symmetry

Conceptual Clarity : Helps students understand line and rotational symmetry effectively.

Practice and Application : Provides ample practice to identify symmetrical figures and draw symmetry lines.

Exam Preparation : Covers frequently asked exam questions, ensuring better performance.

Visualization Skills : Enhances spatial and geometric reasoning by analyzing patterns.

Real-Life Relevance : Connects symmetry concepts to practical applications in nature, art, and design.

Confidence Building : Boosts confidence by solving targeted questions aligned with the syllabus.

Time Management : Familiarity with important questions aids in efficient exam preparation.