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Poster: 3D Shapes | Mathematics for Class 4: NCERT

The document Poster: 3D Shapes | Mathematics for Class 4: NCERT is a part of the Class 4 Course Mathematics for Class 4: NCERT.
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FAQs on Poster: 3D Shapes - Mathematics for Class 4: NCERT

1. What are the basic types of 3D shapes?
Ans. The basic types of 3D shapes include cubes, spheres, cylinders, cones, and pyramids. Each shape has distinct properties, such as the number of faces, edges, and vertices. For example, a cube has 6 faces, while a sphere has none.
2. How are 3D shapes different from 2D shapes?
Ans. 3D shapes have three dimensions: length, width, and height, allowing them to occupy space and have volume. In contrast, 2D shapes only have two dimensions: length and width, making them flat and unable to hold volume.
3. What is the significance of understanding 3D shapes in real life?
Ans. Understanding 3D shapes is crucial in various fields such as architecture, engineering, and art. It helps in visualizing and designing objects, understanding spatial relationships, and solving problems related to volume and surface area.
4. Can you provide examples of 3D shapes in everyday life?
Ans. Yes, examples of 3D shapes in everyday life include a basketball (sphere), a box of cereal (rectangular prism), a road cone (cone), and a soda can (cylinder). These shapes are commonly found in items we use daily.
5. How do you calculate the volume of common 3D shapes?
Ans. The volume can be calculated using specific formulas for each shape. For example, the volume of a cube is found by cubing the length of one side (V = side^3), while the volume of a cylinder is calculated using the formula V = πr^2h, where r is the radius and h is the height.
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