Class 5 Exam  >  Mathematics for Class 5: NCERT  >  Flashcards: 3D Shapes
Flashcards: 3D Shapes
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FAQs on Flashcards: 3D Shapes Video Lecture - Mathematics for Class 5: NCERT

1. What are the different types of 3D shapes?
Ans. The different types of 3D shapes include cubes, spheres, cylinders, cones, and pyramids. Each shape has unique properties, such as the number of faces, edges, and vertices.
2. How can I calculate the volume of a 3D shape?
Ans. The volume of a 3D shape can be calculated using specific formulas for each shape. For example, the volume of a cube is found using the formula V = side³, while the volume of a cylinder is V = πr²h, where r is the radius and h is the height.
3. What is the difference between 2D and 3D shapes?
Ans. The main difference between 2D and 3D shapes is that 2D shapes have only length and width, while 3D shapes have length, width, and height. This means 3D shapes occupy space and can be perceived from different angles.
4. How are 3D shapes used in real life?
Ans. 3D shapes are commonly found in various real-life applications, such as architecture (buildings are often cubic or cylindrical), manufacturing (products are designed in different shapes), and art (sculptures and installations).
5. What are the properties of 3D shapes?
Ans. The properties of 3D shapes include the number of faces, edges, and vertices. For example, a cube has 6 faces, 12 edges, and 8 vertices, while a pyramid has a variable number of faces depending on its base shape.
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