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Concise Mathematics Class 8 ICSE Solutions for Chapter 19 - Representing 3-D in 2-D

ICSE

Concise Mathematics Class 8 ICSE Solutions for Chapter 19 - Representing 3-D in 2-D

ICSE Class 8 Mathematics Chapter 19 Selina Concise Solutions - Free PDF Download

The elements in our environment come in a variety of shapes and sizes, for example, triangles, Squares, and Circles etc. Besides that, shapes like a sheet of paper have just two dimensions: length and width. As a result, such shapes are referred to as 2D or two-dimensional. On the other hand, a room has length, width, and height. Hence, it is referred to as 3D or three-dimensional. The free PDF of Maths Class 8 Solutions Chapter 19 Selina Concise is prepared by Vedantu experts to make students understand the concept easily.

All solutions are particularly designed to provide students with a step-by-step explanation. Hence, from an exam point of view, Selina Concise Mathematics Class 8 Solutions Chapter 19: Representing 3D in 2D is extremely beneficial to students. Here you can find answers to all of the questions given in the exercises in this chapter.

Selina Concise Mathematics Class 8 Solutions Chapter 19

The Class 8 Chapter 19 Solutions Selina Concise Maths PDF contains comprehensive solutions for all of the problems in the chapter. Each explanation contains all of the conclusions and reasoning that were used to arrive at the solution. Even if they are practicing for the first time, students would be able to understand each term easily. Let’s look at the topics discussed in Selina Concise Maths Class 8 Solutions Chapter 19.

Plane shapes: two-dimensional shapes

Solid shapes: three-dimensional shapes

View of 3-D shapes

Maps

Polyhedrons: Convex Polyhedrons & Regular Polyhedrons

Prisms

Pyramid

Euler’s formula

Shapes in Two Dimensions

A 2D shape is a shape or figure that has a length and a breadth in Geometry. To put it another way, a plane object with just length and width is two-dimensional. The sides of this form are made up of straight or curved lines. Furthermore, there may be any number of sides on these figures. Polygons are plane figures made up of lines in general. Triangles and squares, for example, are polygons. Two-dimensional shapes include rectangles, squares, circles, triangles, quadrilaterals, and pentagons.

Shapes in Three Dimensions

In our daily lives, we come across a variety of things with various shapes. Books, a ball, an ice cream cone, and so on. One feature that all of these objects have in common is that they are all different dimensions, widths, and heights or depths. As a consequence, they have three dimensions and are referred to as 3D forms. Dimension is represented by alphabet D in 3D. Space is taken up by 3D forms. You can go forward, backward, right, left, and even up and down in a three-dimensional universe. 3D shapes include cuboids, squares, cylinders, spheres, pyramids, and cones, to name a few.

Faces, Edges, and Vertices

The cube's vertices are its four corners. The edges of the cube are the 12 line segments that make up its skeleton. The faces of the cube are the six flat square surfaces that make up its skin. The faces of the three-dimensional forms can be described as two-dimensional figures. A cylinder, for example, has two faces, both of which are circles. A pyramid also has a triangle on one of its sides. You can download a free PDF of Class 8 Chapter 19 Solutions Selina Concise Maths complete notes

Conclusion

When position, size, orientation, and reflection are removed from the definition of a geometric object, what remains is a geometric shape. That is, if you move a shape around, enlarge it, rotate it, or reflect it in a mirror, the effect is the same shape as the original, not a different one. As architects design structures, they often use 2D sketches to demonstrate how the structure would appear from all sides. Plans and elevations are the terminologies used to characterize these drawings. This chapter gives basic ideas for 2D and 3D shapes. After studying through Selina Concise Mathematics Class 8 Solutions Chapter 19, students will be more confident when attempting any questions from Geometry. Selina Concise free PDF solutions are developed by talented experts to provide students with top-notch error-free solutions. Students can download a free copy of the PDF that is available on Vedantu's website Vedantu.com.

FAQs on Concise Mathematics Class 8 ICSE Solutions for Chapter 19 - Representing 3-D in 2-D

1. What is a 2D representation of a 3D shape called?

A net is basically a two-dimensional representation of a three-dimensional figure with the edges unfolded. Each face of the figure is shown in two dimensions. In other words, when the surface of a three-dimensional figure is laid out, a net is formed. As a result, each face of the figure is visible. Different nets may exist for a solid. For example, architects design structures, they often use 2D sketches to demonstrate how the structure would appear from all sides. Plans and elevations are the terminologies used to define these drawings. The plan refers to the view from the top, while the elevation refers to the view from the front and sides.

2. What is 3D in 2D?

The actual dimensions of a computer workspace are referred to as 2D and 3D. The picture has only two dimensions by using the horizontal and vertical (X and Y) dimensions, and then turned to the side, it becomes a line. The depth (Z) dimension is introduced in 3D.

3. How do I get the free PDF of Selina Concise Mathematics Class 8 Solutions Chapter 19?

Students can download free PDF solutions of Selina Concise Mathematics Class 8 Solutions Chapter 19 on Vedantu’s platform which is developed according to the NCERT curriculum.

4. What is meant by the ICSE Maths Class 8 Chapter 19 - Representing 3D in 2D?

In our daily lives, we come across diverse items of varied shapes and sizes, such as triangles, squares, and circles. 3D or three-dimensional things are some of these shapes that have length, breadth, and height. Two-dimensional shapes or 2D shapes are objects which have length and breadth. For example, a sheet of paper. Chapter 19: Representing 3D in 2D shows how three-dimensional things can be transformed into two-dimensional objects and provides relevant examples.

The ICSE Class 8 Maths Selina Solutions Chapter 19 Representing 3D in 2D is really beneficial to students. Here you will find answers to all of the questions raised in this chapter, written by our topic specialists.

5. What are the concepts covered in Class 8 Chapter 19 - Representing 3D in 2D of ICSE Maths?

Students will discover Euler's formula, two-dimensional shapes, three-dimensional shapes, view of 3D shapes, and more in Chapter 19 Representing 3D in 2D. The principles discussed in this chapter provide a basic introduction to the subject so that students are prepared when they enter the next session. The solutions clarify each issue in a straightforward and accessible manner, ensuring that students do not get confused while reading the chapter. This chapter can be a little tricky for students, but the Vedantu app and website can be helpful to the students. To learn more, click here.

6. What is the difference between 3-D shapes and 2-D Shapes according to concepts talked about in class 8 ICSE Maths?

Plane shapes are called two-dimensional shapes because they have two dimensions: length and breadth. Two-dimensional shapes include the square, triangle, and circle etc.

Solid Shapes: Three- Dimensional (3-D) shapes

Solid shapes are defined by three dimensions: length, width, and height or depth. As a result, they are referred to as three-dimensional shapes.

A solid thing also takes up space.
Three-dimensional shapes include the sphere, cylinder, cuboid, cube, and cone etc.

It is important to understand the conceptual differences between 2-D and 3-D to progress further in the chapter.

7. How to prepare for Concise Mathematics Class 8 Chapter 19 - Representing 3-D in 2-D?

Students should acquire the foundational knowledge to prepare for Concise Mathematics Class 8 Chapter 19 - representing 3-D in 2-D. It is important for students to get their basics right to ace this chapter. Students should be thorough with concepts such as two-dimensional figures, three-dimensional figures, surface area, volume, faces, edges, vertices, cubes, cuboids, prisms, pyramids, cylinders, cones, and spheres. Students should also solve sample papers based on Class 8, Chapter 19 - representing 3-D in 2-D to enhance their knowledge further in this lesson. Students can use free study materials by visiting the Vedantu App and Website.