Class 3Mathematics (Maths Magic)Shapes and Designs

Lines of Symmetry

A shape has symmetry if you can fold it and the two halves match exactly. The fold line is the line of symmetry (or mirror line). Shapes and their lines: Circle (infinite), Square (4 lines), Rectangle (2 lines), Equilateral triangle (3 lines), Isoceles triangle (1 line), Regular hexagon (6 lines). In nature: butterfly wings, human face, leaves all have symmetry (approximately).

How to study this topic

Read the core explanation once without solving.
Open the formula links below and connect them with the topic meaning.
Practice the 10 example pages one by one.
Use the AI ask page for text, voice or image-based doubts.

10 example pages

Concept check 1

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on concept check and show the working clearly.

Definition to application 2

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on definition to application and show the working clearly.

Formula warm-up 3

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on formula warm-up and show the working clearly.

Reasoning practice 4

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on reasoning practice and show the working clearly.

Board-style short answer 5

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on board-style short answer and show the working clearly.

Mistake correction 6

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on mistake correction and show the working clearly.

Visual interpretation 7

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on visual interpretation and show the working clearly.

Applied word problem 8

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on applied word problem and show the working clearly.

Revision challenge 9

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on revision challenge and show the working clearly.

Exam recap 10

For Class 3 Mathematics (Maths Magic), explain or solve a lines of symmetry question from the chapter "Shapes and Designs". Focus on exam recap and show the working clearly.