CBSE Class 5 Mathematics Chapter 5: Does It Look The Same? NCERT Solutions

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NCERT Solutions PDF Class 5 PDF

CBSE Class 5 Mathematics Chapter 5, 'Does It Look The Same?', introduces students to the fascinating world of symmetry and mirror images. This chapter focuses on understanding how shapes can be divided into two equal, identical halves and how a mirror creates a symmetrical reflection. The NCERT Solutions offer clear explanations and engaging visual aids to help young learners identify lines of symmetry and grasp the properties of mirror images. These resources are designed to build a solid foundation in spatial reasoning and geometric understanding, which are essential for future mathematical learning. Through the exercises provided, students will enhance their observation skills and learn to spot symmetrical patterns in the objects around them, making their exam preparation more effective and enjoyable.

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Quick info

BoardCBSE
ClassClass 5
SubjectMathematics
Session2026
LanguageEnglish
TypeNCERT Solutions
ChapterChapter 5

Chapter summary

Chapter 5, 'Does It Look The Same?', focuses on introducing Class 5 students to the concept of symmetry. The NCERT Solutions cover identifying shapes that are symmetrical along a dotted line, understanding how a mirror placed on a dotted line reflects an image, and recognizing which parts of a picture are hidden by the mirror. The exercises are designed to enhance visual perception and basic geometric understanding.

Learning outcomes

  • Identify shapes that have a line of symmetry.
  • Understand the concept of mirror halves.
  • Determine the placement of a mirror to create a specific reflection.
  • Recognize which parts of an image are hidden by a mirror reflection.

Topics covered

Paper topics

  • Symmetry
  • Mirror halves
  • Lines of symmetry
  • Mirror reflection
  • Identifying symmetrical shapes
  • Visualizing reflections

Important topics

  • Identifying lines of symmetry
  • Understanding mirror images
  • Recognizing symmetrical shapes

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Questions and Solutions

Question 1

Which shapes are divided into two mirror halves by the dotted line?
Solution: To determine which shapes are divided into two mirror halves by the dotted line, we need to check if the dotted line acts as a line of symmetry. A line of symmetry divides a shape into two identical parts that are mirror images of each other. By visually inspecting the provided figures (which are assumed to be present in the original context), we identify the shapes where folding along the dotted line would make the two halves perfectly overlap. The shapes that satisfy this condition are considered to have two mirror halves.

Question 1

Look at the figure in the white box. On which of the dotted lines will you keep the mirror so that you get shape (b)? Also, tell which part of the picture will be hidden when we keep the mirror on the dotted line.
Solution: To solve this, we need to analyze the relationship between the original figure (let's call it figure 'a') and the desired reflected shape (figure 'b').

1. Mirror Placement: Observe the dotted lines present in figure 'a'. Place a mirror on each dotted line one by one and visualize the reflection. The dotted line on which the reflection of figure 'a' perfectly matches figure 'b' is the correct line for mirror placement.

2. Hidden Part: When a mirror is placed on a specific dotted line, the part of the original figure that lies directly on that dotted line will be covered by the mirror. This covered portion is the 'hidden part' of the picture. The reflection will only show the parts of the figure that are not covered by the mirror.

By carefully examining the shapes and their reflections, you can identify the correct dotted line and the corresponding hidden part.

Common mistakes

  • Incorrectly identifying the line of symmetry.
  • Confusing mirror halves with other divisions of a shape.
  • Difficulty in visualizing the reflected image.

Revision tips

  • Practice drawing lines of symmetry on various shapes.
  • Use a small mirror to check for symmetry in real-world objects.
  • Carefully observe how the dotted line divides the shape into two identical parts.
  • Visualize the reflection before drawing or identifying it.

Practice MCQs

Q1. What does a dotted line represent when it divides a shape into two mirror halves?

Q2. If a mirror is placed on a dotted line of a symmetrical shape, what is observed?

Q3. In the context of mirror images, what does 'hidden part' refer to?

Frequently asked questions

What is the main concept covered in CBSE Class 5 Maths Chapter 5?

Chapter 5, 'Does It Look The Same?', primarily focuses on the concept of symmetry and mirror images, teaching students to identify shapes that can be divided into two identical halves.

How do these NCERT Solutions help students?

These solutions provide clear, step-by-step explanations for identifying symmetrical shapes and understanding mirror reflections, aiding students in grasping the chapter's concepts and preparing for exams.

What is a 'mirror half' in this chapter?

A 'mirror half' refers to one of the two identical parts a shape is divided into by a line of symmetry, where each half is a mirror image of the other.

Can these solutions be used for revision?

Yes, the detailed explanations and practice questions in these solutions are excellent for revising the concepts of symmetry and mirror images before examinations.

Important links

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