RS Aggarwal Solutions Class 8 Maths Chapter 19 Three Dimensional Figures (Updated For 2021-22)

RS Aggarwal Solutions Class 8 Maths Chapter 19 Three Dimensional Figures: Maths can be quite difficult for some people, but you can always start with the RS Aggarwal Solutions Class 8 Maths. All the solutions of RS Aggarwal Solutions Class 8 Maths Chapter 19 Three Dimensional Figures are as per the current CBSE Syllabus and are very reliable. Subject matter experts have designed easy to understand and well-explained solutions.

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RS Aggarwal Solutions Class 8 Maths Chapter 19 Three Dimensional Figures

RS Aggarwal Solutions Class 8 Maths Chapter 19 Three Dimensional Figures – Overview

RS Aggarwal Solutions Class 8 Maths Chapter 19, you will learn all about the Three Dimensional Figures and questions related to it, 

• Dimension

Dimension can be defined as measuring a region’s distance or size or an object in a specific direction. It is the measurement of the length, breadth, and height of an object. The dimensions are divided into 3 parts : One dimension, two dimensions, three dimensions.

• One-Dimensional (1D)

A 1D figure is is formed when a line segment is constructed on a surface. It only possesses length as a measurement property, for example, a line.

• Two-Dimensional (2D)

In 2D figures, there are two dimensions, i.e., length and width, and do not possess thickness or depth, like circle, square, rectangle, etc.

• Three-Dimensional (3D)

In 3D figures, there is a definite shape or figure that comprises of three measurable quantities – length, breadth, and height. The main contrasting feature of 3D shapes with one and 2D figures is that 3D shapes possess thickness or depth. 

There is a variety for 3D figures like prism, pyramids, and figures with curved surfaces.

1. Prism: It is a a three-dimensional object, a pair of parallel, congruent bases. After analysing the shape of the prism bases, it has various examples of prism – rectangular prism, triangular prism.
2. Pyramid: It has a single base, any polygon. After analysing the prism base’s shape, a pyramid has named an example of a prism – square pyramid, triangular pyramid.
3. 3D figures with curved surface like cone, cylinder, and spheres.

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