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FAQs on PPT: 3D Shapes - Mathematics for Class 4

1. What are some common 3D shapes studied in Class 4?
Ans. In Class 4, students commonly study 3D shapes such as cubes, rectangular prisms, pyramids, spheres, and cylinders.
2. How can I identify a cube from other 3D shapes?
Ans. A cube has 6 equal square faces, 12 edges, and 8 vertices. It is the only 3D shape that has all edges of the same length.
3. What is the formula for finding the volume of a rectangular prism?
Ans. The formula for finding the volume of a rectangular prism is V = l x w x h, where l is the length, w is the width, and h is the height of the prism.
4. How can I calculate the surface area of a pyramid?
Ans. To calculate the surface area of a pyramid, you can use the formula SA = 0.5 x p x l + B, where p is the perimeter of the base, l is the slant height, and B is the area of the base.
5. Why is it important to study 3D shapes in mathematics?
Ans. Studying 3D shapes in mathematics helps students understand spatial relationships, develop problem-solving skills, and apply mathematical concepts in real-world scenarios such as architecture and engineering.
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