Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store

NCERT Solutions For Class 7 Maths Chapter 14 Symmetry in Hindi - 2025-26

ffImage
banner
widget title icon
Latest Updates

NCERT Solutions For Class 7 Maths Chapter 14 Symmetry in Hindi - 2025-26

In NCERT Solutions for Class 7 Maths In Hindi Chapter 14 Symmetry, you’ll discover the interesting world of symmetry found all around us—in shapes, patterns, and even letters! This chapter helps you learn what symmetry means, how to spot lines of symmetry, and why symmetrical shapes are important. If you’re ever curious about mirror images or patterns that repeat, this chapter is perfect for you.


Vedantu offers simple, step-by-step solutions in Hindi and English, so you won’t get stuck or confused. You can easily download the free PDF of the solutions to help you practise any time. If you want to know how this fits into your studies, check the class 7 maths syllabus for all chapters covered this year.


With clear answers, helpful hints, and practice questions, these NCERT Solutions make it much easier to prepare for your exams and improve your maths skills for Class 7.


NCERT Solution for Hindi Chapter 14- सममिति

अभ्यास 14.1

प्रश्न 1: निम्नलिखित छेद की हुई आकृतियों की प्रतिलिपियाँ बनाकर (खींच कर) उनमें से प्रत्येक की सममित रेखाएँ ज्ञात कीजिए:

(image will be uploaded soon)

उत्तर:

(image will be uploaded soon)   

उत्तर:

  (image will be uploaded soon)

उत्तर:

  (image will be uploaded soon)


प्रश्न 2: नीचे सममित रेखा (रेखाएँ) दी हुई है। अन्य छेद ज्ञात कीजिए।

  (image will be uploaded soon)

उत्तर:

  (image will be uploaded soon)


प्रश्न 3: निम्नलिखित आकृतियों में, दर्पण रेखा (अर्थात् सममित रेखा) बिंदुकित रेखा के रूप में दी गई है। बिंदुकित (दर्पण) रेखा में प्रत्येक आकृति का परावर्तन करके, प्रत्येक आकृति को पूरा कीजिए। (आप बिंदुकित रेखा के अनुदिश एक रेखा रख सकते हैं और फिर प्रतिबिंब (image) के लिए दर्पण में देख सकते हैं)। क्या आपको पूरी की गई आकृति का नाम याद है?

(image will be uploaded soon)

उत्तर:

 (image will be uploaded soon)


प्रश्न 4: निम्नलिखित आकृतियों की एक से अधिक सममित रेखाएँ हैं। ऐसी आकृतियों के लिए यह कहा जाता है कि इनकी अनेक सममित रेखाएँ हैं।

 (image will be uploaded soon)

निम्नलिखित आकृतियों में से प्रत्येक में विविध सममित रेखाओं (यदि हों तो), की पहचान कीजिए:

  (image will be uploaded soon)

उत्तर:

(image will be uploaded soon)

उत्तर:

(image will be uploaded soon)


प्रश्न 5: यहाँ दी हुई आकृति की प्रतिलिपि बनाइए

(image will be uploaded soon)

किसी एक विकर्ण की सममित रेखाएँ लीजिए तथा कुछ और वर्गों को इस तरह छायांकित कीजिए, कि यह आकृति इस विकर्ण के अनुदिश सममित हो जाए। क्या ऐसा करने की एक से अधिक विधियाँ हैं? क्या यह आकृति दोनों विकर्णों के अनुदिश सममित होगी?

(image will be uploaded soon)

उत्तर:

(image will be uploaded soon)

उत्तर:

(image will be uploaded soon)


प्रश्न 6: निम्नलिखित आकृतियों की प्रतिलिपियाँ बनाइए और प्रत्येक आकार को इस तरह पूरा कीजिए ताकि वह आकार दर्पण रेखा (या रेखाओं) के अनुदिश सममित हो:

(image will be uploaded soon)

उत्तर:

 (image will be uploaded soon)


प्रश्न 7: निम्नलिखित आकृतियों के लिए सममित रेखाओं की संख्या बताइए:

  1. एक समबाहु त्रिभुज

  2. एक समद्विबाहु त्रिभुज

  3. एक विषमबाहु त्रिभुज

  4. एक वर्ग

  5. एक आयत

  6. एक समचतुर्भुज

  7. एक समांतर चतुर्भुज

  8. एक चतुर्भुज

  9. एक सम षड्‌भुज

  10. एक वृत्त

उत्तर: 

(a) सममित रेखा- $ 3 $ 

(image will be uploaded soon)

(b) सममित रेखा  $ -1 $

(image will be uploaded soon)

 (c) सममित रेखा $ -0, $ 

(image will be uploaded soon)

(d) सममित रेखा -4, 

(image will be uploaded soon)

 (e) सममित रेखा -2 

(image will be uploaded soon)

 (f) सममित रेखा -2 

(image will be uploaded soon)

 (g) सममित रेखा  $ -0 $ 

(image will be uploaded soon)

 (h) सममित रेखा  $ -\mathbf{0} $ 

(image will be uploaded soon)

(i)  $ ~\left( i \right)\text{ }6, $  सममित रेखा-

(image will be uploaded soon)

(j) अनेक

(image will be uploaded soon)


प्रश्न 8: एक अंग्रेजी वर्णमाला के किन अक्षरों में निम्नलिखित के अनुदिश परावर्तन सममिति (दर्पण परावर्तन से संबंधित सममिति) है:

  1. एक उर्ध्वाधर दर्पण

  2. एक क्षैतिज दर्पण

  3. उर्ध्वाधर और क्षैतिज दर्पण दोनों

उत्तर: 

  1. एक उर्ध्वाधर दर्पण-  $ A,\text{ }H,\text{ }I,\text{ }M,\text{ }O,\text{ }T,\text{ }U,\text{ }V,\text{ }W,\text{ }X $ 

  2. एक क्षैतिज दर्पण $ -B,\text{ }C,\text{ }D,\text{ }E,\text{ }H,\text{ }I,\text{ }K,\text{ }O,\text{ }S,\text{ }X,\text{ }Z $ 

  3. उर्ध्वाधर और क्षैतिज दर्पण दोनों $ -H,\text{ }I,\text{ }O,\text{ }X $ 


प्रश्न 9: ऐसे आकारों के तीन उदाहरण दीजिए, जिनमें कोई सममित रेखा न हो।

उत्तर: विषमबाहु त्रिभुज, समांतर चतुर्भुज,विषमबाहु चतुर्भुज


प्रश्न 10: आप निम्नलिखित आकृतियों को सममित रेखा के लिए अन्य क्या नाम दे सकते हैं?

(i) एक समद्विबाहु त्रिभुज (ii) एक वृत्त

उत्तर: (i) माध्यिका, (ii) व्यास


अभ्यास 14.2

प्रश्न 1: निम्नलिखित आकृतियों में से किन आकृतियों में  $ \mathbf{1} $  से अधिक क्रम की घूर्णन सममित है?

(image will be uploaded soon)

उत्तर: ( a) घूर्णन सममित -4 

(image will be uploaded soon)

(b) घूर्णन सममित- $ 3 $ 

(image will be uploaded soon)

( d) घूर्णन सममित -2 

(image will be uploaded soon)

(e) घूर्णन सममित -3  

(image will be uploaded soon)

( f) घूर्णन सममित- $ 4 $ 

(image will be uploaded soon)


प्रश्न 2: प्रत्येक आकृति के घूर्णन सममिति का क्रम बताइए।

 (image will be uploaded soon)

उत्तर:

  1. घूर्णन सममिति -2 

 (image will be uploaded soon)

(b) घूर्णन सममिति -2 

 (image will be uploaded soon)

  1. घूर्णन सममिति -3 

 (image will be uploaded soon)

 (d) घूर्णन सममिति -4 

 (image will be uploaded soon)

 (e) घूर्णन सममिति -4

 (image will be uploaded soon)

(f) घूर्णन सममिति -5

 (image will be uploaded soon)

(g) घूर्णन सममिति -6 

 (image will be uploaded soon)

(h) घूर्णन सममिति -3

 (image will be uploaded soon)


अभ्यास 14.3

प्रश्न 1: किन्हीं दो आकृतियों के नाम बताइए, जिनमें रैखिक सममित और क्रम 1 से अधिक की घूर्णन सममिति दोनों ही हों।

उत्तर: वर्ग,और  वृत्त


प्रश्न 2: जहाँ सम्भव हो, निम्नलिखित की एक रफ आकृति खींचिए:

  1. एक त्रिभुज, जिसमें रैखिक सममिति और क्रम  $ \mathbf{1} $  से अधिक की घूर्णन सममिति दोनों ही हों।

उत्तर: समबाहु त्रिभुज

(image will be uploaded soon)

  1. एक त्रिभुज, जिसमें केवल रैखिक सममिति और क्रम 1 से अधिक की घूर्णन सममिति न हो।

उत्तर: समद्विबाहु त्रिभुज

(image will be uploaded soon)

  1. एक चतुर्भुज, जिसमें क्रम  $ \mathbf{1} $  से अधिक की घूर्णन सममिति हो, परंतु रैखिक सममिति न हो।

उत्तर: समांतर चतुर्भुज

(image will be uploaded soon)

  1. एक चतुर्भुज, जिसमें केवल रैखिक सममिति हो और क्रम  $ \mathbf{1} $  से अधिक की घूर्णन सममिति न हो।

उत्तर: चतुर्भुज,

(image will be uploaded soon)


प्रश्न 3: यदि किसी आकृति की दो या अधिक सममित रेखाएँ हों, तो क्या यह आवश्यक है कि उसमें क्रम एक से अधिक की घूर्णन सममिति होगी?

उत्तर: हाँ,क्योकि केंद्र के माध्यम से प्रत्येक रेखा समरूपता की रेखा बनाती है और इसमे घूर्णन है हर कोण के लिए केंद्र के चारो ओर समरूपता ।


प्रश्न 4: रिक्त स्थानों को भरिए:

उत्तर:

आकार

घूर्णन का केंद्र

घूर्णन सममिति का क्रम

धूर्णन का कोण

वर्ग

बिंदु जिसपर विकर्ण आपस में काटते हैं

$ 4 $ 

$ 90{}^\circ  $ 

आयत

बिंदु जिसपर विकर्ण आपस में काटते हैं

$ 2 $ 

$ 180{}^\circ  $ 

समचतुर्भुज

बिंदु जिसपर विकर्ण आपस में काटते हैं

$ 2 $ 

$ 180{}^\circ  $ 

समबाहु त्रिभुज

बिंदु जिसपर माध्यिकाएँ आपस में काटती हैं

$ 3 $ 

$ 120{}^\circ  $ 

समषड्भुज

बिंदु जिसपर विकर्ण आपस में काटते हैं

$ 6 $ 

$ 60{}^\circ  $ 

वृत्त

केंद्र

अनेक

कोई भी कोण

अर्धवृत्त

केंद्र

$ 1 $ 

$ 360{}^\circ  $ 


प्रश्न 5: ऐसे चतुर्भुजों के नाम बताइए, जिनमें रैखिक सममिति और क्रम एक से अधिक की घूर्णन सममिति दोनों ही हों।

उत्तर: वर्ग

(image will be uploaded soon)


प्रश्न 6: किसी आकृति को उसके केंद्र के परित 60° के कोण पर घुमाने पर, वह उसकी प्रारम्भिक स्थिति जैसी ही दिखाई देती है। इस आकृति के लिए ऐसे कौन-सेअन्य कोणों के लिए भी हो सकता है?

उत्तर:  $ 120{}^\circ ,\text{ }180{}^\circ ,\text{ }240{}^\circ ,\text{ }300{}^\circ ,\text{ }360{}^\circ  $ 

(image wil be uploaded soon)


प्रश्न 7: क्या हमें कोई ऐसी क्रम 1 से अधिक की घूर्णन सममिति प्राप्त हो सकती है, जिसके घूर्णन के कोण निम्नलिखित हों?

 $ \left( i \right)\text{ }45{}^\circ \text{ }\left( ii \right)\text{ }17{}^\circ  $ 

उत्तर: (i) हाँ, (ii) नहीं


NCERT Solutions for Class 7 Maths Chapter 14 Symmetry In Hindi

Chapter-wise NCERT Solutions are provided everywhere on the internet with an aim to help the students to gain a comprehensive understanding. Class 7 Maths Chapter 14 solution Hindi mediums are created by our in-house experts keeping the understanding ability of all types of candidates in mind. NCERT textbooks and solutions are built to give a strong foundation to every concept. These NCERT Solutions for Class 7 Maths Chapter 14 in Hindi ensure a smooth understanding of all the concepts including the advanced concepts covered in the textbook.


NCERT Solutions for Class 7 Maths Chapter 14 in Hindi medium PDF download are easily available on our official website (vedantu.com). Upon visiting the website, you have to register on the website with your phone number and email address. Then you will be able to download all the study materials of your preference in a click. You can also download the Class 7 Maths Symmetry solution Hindi medium from Vedantu app as well by following the similar procedures, but you have to download the app from Google play store before doing that. 


NCERT Solutions in Hindi medium have been created keeping those students in mind who are studying in a Hindi medium school. These NCERT Solutions for Class 7 Maths Symmetry in Hindi medium pdf download have innumerable benefits as these are created in simple and easy-to-understand language. The best feature of these solutions is a free download option. Students of Class 7 can download these solutions at any time as per their convenience for self-study purpose. 


These solutions are nothing but a compilation of all the answers to the questions of the textbook exercises. The answers/ solutions are given in a stepwise format and very well researched by the subject matter experts who have relevant experience in this field. Relevant diagrams, graphs, illustrations are provided along with the answers wherever required. In nutshell, NCERT Solutions for Class 7 Maths in Hindi come really handy in exam preparation and quick revision as well prior to the final examinations. 

WhatsApp Banner

FAQs on NCERT Solutions For Class 7 Maths Chapter 14 Symmetry in Hindi - 2025-26

1. How do the NCERT Solutions for Class 7 Maths Chapter 14 help in mastering the concepts for the 2025-26 exams?

The NCERT Solutions for Class 7 Maths Chapter 14 provide step-by-step methods for solving every problem in the textbook. By following these solutions, students learn the correct methodology as per the CBSE guidelines. This ensures they not only find the right answer but also understand the logic behind identifying the line of symmetry and calculating the order of rotational symmetry, which is crucial for scoring well in exams.

2. What specific concepts are covered in the solutions for Exercise 14.1 of Chapter 14, Symmetry?

The NCERT Solutions for Exercise 14.1 focus primarily on line symmetry. The questions guide you on how to:

  • Identify lines of symmetry in various geometrical figures.
  • Draw the lines of symmetry for given shapes.
  • Complete figures that are symmetrical along a given mirror line.
Following these solutions helps build a strong foundational understanding of reflectional symmetry.

3. What is the step-by-step method to determine the order of rotational symmetry for a shape as explained in the NCERT Solutions?

The NCERT Solutions explain a clear, step-by-step method:
1. First, identify the centre of rotation, which is the fixed point around which the object turns.
2. Next, rotate the object clockwise or anti-clockwise by a certain angle.
3. Count how many times the object looks exactly the same as its original position during a full 360-degree rotation.
4. The total count is the order of rotational symmetry. For example, a square has an order of 4.

4. How many exercises are there in Chapter 14, and what does each one focus on?

Class 7 Maths Chapter 14, Symmetry, has three exercises in total. The NCERT Solutions provide detailed answers for all of them:

  • Exercise 14.1: Focuses on identifying and drawing lines of symmetry.
  • Exercise 14.2: Deals with rotational symmetry, including the centre and order of rotation.
  • Exercise 14.3: Combines both concepts, exploring shapes that have both line and rotational symmetry.

5. Why is it important to follow the exact steps given in NCERT Solutions when identifying lines of symmetry for complex figures?

Following the exact steps is crucial because it ensures accuracy and prevents common errors. For complex figures, it's easy to miss a line of symmetry or imagine one that doesn't exist. The NCERT Solutions demonstrate a systematic approach, such as folding the shape mentally or drawing it on paper, to confirm that one half is the perfect mirror image of the other. This methodical process, as per the CBSE curriculum, guarantees you don't lose marks for incomplete or incorrect answers.

6. What is a common mistake students make when solving problems on rotational symmetry, and how do the NCERT Solutions help prevent it?

A common mistake is confusing the angle of rotation with the order of rotation. Students often write the angle (e.g., 90°) instead of the order (e.g., 4). The NCERT Solutions clearly differentiate between these two concepts. They show how to first find the smallest angle that makes the shape look the same and then use it to calculate the order (by dividing 360° by that angle), reinforcing the correct method.

7. How do the NCERT Solutions explain the relationship between line symmetry and rotational symmetry in regular polygons?

The NCERT Solutions clearly illustrate that for any regular polygon, the number of lines of symmetry is equal to its order of rotational symmetry. For instance, the solutions show that an equilateral triangle has 3 lines of symmetry and an order of rotational symmetry of 3. Similarly, a square has 4 lines of symmetry and an order of 4. This helps students understand the direct relationship between these two properties in symmetrical shapes.

8. Where can I access free, step-by-step NCERT Solutions for Class 7 Maths Chapter 14 for the 2025-26 session?

You can access free, detailed, and step-by-step NCERT Solutions for Class 7 Maths Chapter 14, prepared according to the latest 2025-26 CBSE syllabus, on educational platforms like Vedantu. These solutions are crafted by expert teachers to help you understand the correct problem-solving methods for every question in the textbook.