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The NCERT Class 7 Maths, Chapter 15 deals with Visualising Solid Shapes. In this chapter, you will learn about different solid shapes in terms of their dimensions. You will learn to visualise these solid shapes and drawing 3D shapes on a flat surface. In this chapter, you will learn about the faces, edges and vertices of solid shapes. You will not only learn to draw isometric sketches of solid figures and visualise them but also learn about the dimensions of solid figures observed in the surrounding.
To know more about NCERT Solutions for Class 7, Maths Chapter 15, Visualising Solid Shapes, let’s look at the topics and sub-topics of this chapter:
15.1 Introduction: Plane Figures and Solid Shapes
15.2 Faces, Edges and Vertices
15.3 Nets for Building 3D Shapes
15.4 Drawing Solids on a Flat Surface
15.5 Viewing Different Sections of a Solid
Section 15.2 – In this section, you will learn about faces, vertices and edges of solid shapes. You will learn to find the number of edges, vertices and faces in the solid shapes of different dimensions. In this section, you will also learn to identify the faces, edges and vertices of two-dimensional figures and three-dimensional figures.
Section 15.3 – This section deals with nets for building 3D shapes. In this section, you will learn to build 3-dimensional shapes using ‘net’. Net is a skeleton outline to build a 3-dimensional figure. You will also learn to develop new solid shapes using the outer sketch. You will even learn to use a base for building 3D models of solid shapes.
NCERT Class 7 Maths, Chapter 15 helps one to understand the concept of Visualising Solid Shapes. In this chapter, you will learn to visualise the solid shapes in 2 dimensional and 3-dimensional angles. In this chapter, you will also learn to build 3-dimensional models using isometric and oblique sketches. You will also learn to visualise the hidden parts of a solid object to use it in different fields like engineering, sketching, designing etc. This chapter is very engaging and is sure to enhance your creative skills. In this chapter, you will learn to identify different edges, faces and vertices of solid objects.
Section 15.4 – This section deals with drawing solids on a flat surface. In this section, you will learn to draw 3-dimensional solid shapes on a flat paper using different techniques. To draw a 3-dimensional figure on a flat surface, you will learn two techniques – isometric sketches and oblique sketches. In this section, you will learn the two techniques of building a 3D model of solid shapes. This basic drawing will be useful in the subsequent study related to models and dimensions.
Section 15.5 – This section deals with viewing different sections of a solid. In this section, you will learn to view 3-dimensional models from different angles to understand the solid figure better. You will learn that slicing or cutting can be one way of viewing an object. Another way of viewing a solid shape is shadow play. You will also learn to view solid shapes from different angles to get a different view.
To know more about the NCERT solutions Class 7 Maths, Chapter 15 – Visualising Solid Shapes explore the exercises below:
https://www.urbanpro.com/assets/new-ui/sharing_job.pngPublished on 2020-02-13 17:13:40 by arunima. Last Modified on 2020-02-13 17:13:40
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