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NCERT Solutions for Class 7 Maths Chapter 15: Visualising Solid Shapes - Exercise 15.4

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Last updated date: 29th Mar 2024
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MVSAT 2024

NCERT Solutions for Class 7 Maths Chapter 15 (EX 15.4)

Free PDF download of NCERT Solutions for Class 7 Maths Chapter 15 Exercise 15.4 (EX 15.4) and all chapter exercises at one place prepared by expert teacher as per NCERT (CBSE) books guidelines. Class 7 Maths Chapter 15 Visualising Solid Shapes Exercise 15.4 Questions with Solutions to help you to revise complete Syllabus and Score More marks. Register and get all exercise solutions in your emails.


Class:

NCERT Solutions for Class 7

Subject:

Class 7 Maths

Chapter Name:

Chapter 15 - Visualising Solid Shapes

Exercise:

Exercise - 15.4

Content-Type:

Text, Videos, Images and PDF Format

Academic Year:

2023-24

Medium:

English and Hindi

Available Materials:

  • Chapter Wise

  • Exercise Wise

Other Materials

  • Important Questions

  • Revision Notes

Access NCERT Solution for Class 7 Maths Chapter 15 – Visualising Solid Shapes

Exercise 15.4


1. A bulb is kept burning just right above the following solids. Name the shape of the shadows obtained in each case. Attempt to give a rough sketch of the shadow. (You may try to experiment first and then answer these questions).


(a) A ball


A bulb image



A ball image


Ans: The shape of the shadow of a ball will be a circle.


Shadow of ball


(b) A cylindrical pipe


A bulb image



A cylindrical pipe


Ans: The shape of the shadow of a cylindrical pipe will be a line.


Shadow of cylindrical pipe


(c) A book

A bulb image

A book image


Ans: The shape of the shadow of a book will be a rectangle.


Shadow of book


2. Here are the shadows of some 3-D objects, when seen under the lamp of the overhead projector. Identify the solid (s) that match each shadow. (There may be multiple answers for these!)


A circle image


Ans:  Compact disk, Chapatti, Football, Plate. The shadow of these solids are circle.


A square image

Ans: A dice, Chalk box, Square paper sheet, cubical magic box.


A triangle image

Ans: Triangular pyramid, Ice-cream cone, Birthday cap


A rectangle image

Ans: NoteBook, Table, Geometry Box

 

3. Examine if the following are true statements:

(i) The cube can cast a shadow in the shape of a rectangle.

Ans: True.


(ii) The cube can cast a shadow in the shape of a hexagon.

Ans: False. A cube can cast shadows only in the shape of a square. Therefore, any other shapes are not possible.

NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Exercise 15.4

Opting for the NCERT solutions for Ex 15.4 Class 7 Maths is considered as the best option for the CBSE students when it comes to exam preparation. This chapter consists of many exercises. Out of which we have provided the Exercise 15.4 Class 7 Maths NCERT solutions on this page in PDF format. You can download this solution as per your convenience or you can study it directly from our website/ app online.


Vedantu in-house subject matter experts have solved the problems/ questions from the exercise with the utmost care and by following all the guidelines by CBSE. Class 7 students who are thorough with all the concepts from the Subject Visualising Solid Shapes textbook and quite well-versed with all the problems from the exercises given in it, then any student can easily score the highest possible marks in the final exam. With the help of this Class 7 Maths Chapter 15 Exercise 15.4 solutions, students can easily understand the pattern of questions that can be asked in the exam from this chapter and also learn the marks weightage of the chapter. So that they can prepare themselves accordingly for the final exam.


Besides these NCERT solutions for Class 7 Maths Chapter 15 Exercise 15.4, there are plenty of exercises in this chapter which contain innumerable questions as well. All these questions are solved/answered by our in-house subject experts as mentioned earlier. Hence all of these are bound to be of superior quality and anyone can refer to these during the time of exam preparation. In order to score the best possible marks in the class, it is really important to understand all the concepts of the textbooks and solve the problems from the exercises given next to it.


Do not delay any more. Download the NCERT solutions for Class 7 Maths Chapter 15 Exercise 15.4 from Vedantu website now for better exam preparation. If you have the Vedantu app in your phone, you can download the same through the app as well. The best part of these solutions is these can be accessed both online and offline as well.

FAQs on NCERT Solutions for Class 7 Maths Chapter 15: Visualising Solid Shapes - Exercise 15.4

1. Mention the topics that are covered in NCERT Solutions for Class 7 Maths Chapter 15.

NCERT Solutions for Chapter 15 Visualising Solid Shapes of Class 7 Maths deepen the understanding of plane and solid figures. It covers topics such as: Introduction to Plane and Solid figures: their properties; Faces, Edges, and Vertices; Building 3-D figures, Ways to draw Solid objects on a flat surface: Oblique Sketches, Isometric Sketches, and Visualising Solid Shapes. Different techniques to view Solid Shapes that include Cutting or Slicing and Shadow play.

2. What are the important topics covered in NCERT Solutions for Chapter 15 of Class 7 Maths?

In the NCERT Solutions for Chapter 15 of Class 7 Maths you will learn about faces, vertices, and edges of Solid figures. All the topics included in the chapter require a strong grip for answering the questions in the exam. It is essential to be able to differentiate between the types of figures- the 2-D and 3-D objects, the kinds of polyhedrons, and prisms. This Chapter is mostly theoretical and demands apprehension.

3. Why should I practice NCERT Solutions for Chapter 15 Visualising Solid Shapes of  Class 7 Maths?

Chapter 15 of Class 7 Maths requires undivided attention due to the many concepts in it. It is beneficial for the students to use the NCERT Solutions to practice this chapter. The solutions have simple explanations of all the topics that help the students in clarifying all their doubts and confusions. It will be relatively easier to solve the questions with clear apprehension and a strong grip on each concept. 

4. How many questions are there in Exercise 15.4 of Chapter 15 of Class 7 Maths?

The Exercise 15.4 has overall three questions but each with a different number of subparts to them. The students are recommended to try solving these questions by themselves first after going through the examples and theory. In case of doubts you can refer to solved answers provided in NCERT Solutions. You can also get in-depth knowledge about visualising solid shapes from the NCERT Solutions for Chapter 15 of Class 7 Maths along with solved questions.

5. Why is the cone not a pyramid according to Chapter 15 of Class 7 Maths?

In Chapter 15 Visualising Solid Shapes of Class 7 Maths you learn that cones and pyramids are two different figures. A cone has a circular base while a pyramid has a triangular base which is a polygon. That is the reason why the cone is not a pyramid.


You can access the offline PDF for this chapter and all others of Class 7 Mathematics at Vedantu. It will provide you with intensive details about each shape covered in the course.