Class 7 Exam > Class 7 Notes > RD Sharma Solutions for Class 7 Mathematics > RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math
Ex-18.1, Symmetry, Class 7, Math RD Sharma Solutions | RD Sharma Solutions for Class 7 Mathematics PDF Download
Question 1:
State the number of lines of symmetry for the following figures:
(i) An equilateral triangle
(ii) An isosceles triangle
(iii) A scalene triangle
(iv) A rectangle
(v) A rhombus
(vi) A square
(vii) A parallelogram
(viii) A quadrilateral
(ix) A regular pentagon
(x) A regular hexagon
(xi) A circle
(xii) A semicircle
Answer 1:
(i) An equilateral triangle has 3 lines of symmetry.
(ii) An isosceles triangle has 1 line of symmetry.
(iii) A scalene triangle has no line of symmetry.
(iv) A rectangle has 2 lines of symmetry.
(v) A rhombus has 2 lines of symmetry.
(vi) A square has 4 lines of symmetry.
(vii) A parallelogram has no line of symmetry.
(viii) A quadrilateral has no line of symmetry.
(ix) A regular pentagon has 5 lines of symmetry.
(x) A regular hexagon has 6 lines of symmetry.
(xi) A circle has an infinite number of lines of symmetry all along the diameters.
(xii) A semicircle has only one line of symmetry.
Question 2:
What other name can you give to the line of symmetry of
(i) An isosceles triangle?
(ii) A circle?
Answer 2:
(i) An isosceles triangle has only 1 line of symmetry.
This line of symmetry is also known as the altitude of an isosceles triangle.
(ii) A circle has an infinite number of lines of symmetry all along its diameters.
Question 3:
Identify three examples of shapes with no line of symmetry.
Answer 3:
A scalene triangle, a parallelogram and a trapezium do not have any line of symmetry.
Question 4:
Identify multiple lines of symmetry, if any, in each of the following figures:
Answer 4:
(A) The given figure has 3 lines of symmetry. Therefore it has multiple lines of symmetry.
(B) The given figure has 2 lines of symmetry. Therefore it has multiple lines of symmetry.
(C) The given figure has 3 lines of symmetry. Therefore it has multiple lines of symmetry.
(D) The given figure has 2 lines of symmetry. Therefore it has multiple lines of symmetry.
(E) The given figure has 4 lines of symmetry. Therefore it has multiple lines of symmetry.
(F) The given figure has only 1 line of symmetry.
(G) The given figure has 4 lines of symmetry. Therefore it has multiple lines of symmetry.
(H) The given figure has 6 lines of symmetry. Therefore it has multiple lines of symmetry.
The document Ex-18.1, Symmetry, Class 7, Math RD Sharma Solutions | RD Sharma Solutions for Class 7 Mathematics is a part of the Class 7 Course RD Sharma Solutions for Class 7 Mathematics.
All you need of Class 7 at this link: Class 7
FAQs on Ex-18.1, Symmetry, Class 7, Math RD Sharma Solutions - RD Sharma Solutions for Class 7 Mathematics
| 1. What is symmetry in mathematics? |  |
Ans. Symmetry in mathematics is a concept that refers to a perfect balance or similarity in shape, size, and arrangement of objects or figures when they are divided into equal parts and one part is the mirror image of the other.
| 2. How is symmetry useful in real life? | |
Ans. Symmetry is useful in real life in various ways. For example, it is used in architecture to create visually appealing buildings and structures. It is also used in design and art to create balance and harmony. In nature, symmetry can be seen in the arrangement of petals in flowers, the shapes of leaves, and the patterns on butterfly wings.
| 3. How can we determine if a figure has symmetry? | |
Ans. To determine if a figure has symmetry, we can use the method of folding. If a figure can be folded along a line such that the two halves match exactly, then the figure has symmetry. Another way is to observe if a figure has rotational symmetry, which means it can be rotated by a certain angle and still look the same.
| 4. What are the different types of symmetry? | |
Ans. There are three main types of symmetry - reflectional symmetry, rotational symmetry, and translational symmetry. Reflectional symmetry is when a figure can be divided into two equal halves that are mirror images of each other. Rotational symmetry is when a figure can be rotated by a certain angle and still look the same. Translational symmetry is when a figure can be shifted or translated without changing its shape.
| 5. How is symmetry related to patterns? | |
Ans. Symmetry plays a significant role in creating and identifying patterns. Patterns often exhibit symmetry, whether it is in the arrangement of colors, shapes, or designs. Symmetry helps in creating balance and repetition, making patterns visually appealing and harmonious. Additionally, recognizing symmetry in patterns can aid in predicting and extending the pattern.
Related Exams
About this Document
|
4.72/5 Rating |
|
Nov 23, 2024 Last updated |
Document Description: RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math for Class 7 2024 is part of RD Sharma Solutions for Class 7 Mathematics preparation.
The notes and questions for RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math have been prepared according to the Class 7 exam syllabus. Information about RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math covers topics
like and RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math Example, for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math.
Introduction of RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math in English is available as part of our RD Sharma Solutions for Class 7 Mathematics
for Class 7 & RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math in Hindi for RD Sharma Solutions for Class 7 Mathematics course.
Download more important topics related with notes, lectures and mock test series for Class 7
Exam by signing up for free. Class 7: Ex-18.1, Symmetry, Class 7, Math RD Sharma Solutions | RD Sharma Solutions for Class 7 Mathematics
Description
Full syllabus notes, lecture & questions for Ex-18.1, Symmetry, Class 7, Math RD Sharma Solutions | RD Sharma Solutions for Class 7 Mathematics - Class 7 | Plus excerises question with solution to help you revise complete syllabus for RD Sharma Solutions for Class 7 Mathematics | Best notes, free PDF download
Information about RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math
In this doc you can find the meaning of RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math defined & explained in the simplest way possible. Besides explaining types of
RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math theory, EduRev gives you an ample number of questions to practice RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math tests, examples and also practice Class 7
tests
|
Explore Courses for Class 7 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Extra Questions
,Ex-18.1
,Math RD Sharma Solutions | RD Sharma Solutions for Class 7 Mathematics
,Symmetry
,MCQs
,Ex-18.1
,practice quizzes
,Math RD Sharma Solutions | RD Sharma Solutions for Class 7 Mathematics
,Semester Notes
,Class 7
,mock tests for examination
,Sample Paper
,study material
,Symmetry
,Exam
,Ex-18.1
,Free
,Objective type Questions
,Summary
,Previous Year Questions with Solutions
,ppt
,video lectures
,Math RD Sharma Solutions | RD Sharma Solutions for Class 7 Mathematics
,Viva Questions
,Important questions
,shortcuts and tricks
,Class 7
,past year papers
,Symmetry
,Class 7
;
Additional Information about RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math for Class 7 Preparation
RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math Free PDF Download
The RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math is an invaluable resource that delves deep into the core of the Class 7 exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math now and kickstart your journey towards success in the Class 7 exam.
Importance of RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math
The importance of RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math cannot be overstated, especially for Class 7 aspirants.
This document holds the key to success in the Class 7 exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math Notes
RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math Notes on EduRev are your ultimate resource for success.
RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math Class 7 Questions
The "RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math Class 7 Questions" guide is a valuable resource for all aspiring students preparing for the
Class 7 exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math on the App
Students of Class 7 can study RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of RD Sharma Solutions - Ex-18.1, Symmetry, Class 7, Math is prepared as per the latest Class 7 syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup