Students can go through AP 7th Class Maths Notes Chapter 13 Visualising Solid Shapes to understand and remember the concepts easily.
Class 7 Maths Chapter 13 Notes Visualising Solid Shapes
Introduction :
→ The objects that occupy space and have three dimensions are called three dimensional shapes (or) 3 – D shapes.
→ A 3-D object will have length, breadth and height.
→ The examples for 3D objects are cuboid, cube, cylinder, cone, pyramid, etc.
→ Cuboid :
A Cuboid has:
- 6 faces
- 12 edges
- 8 corners
- 8 vertices
→ Cube :
A Cube has :
- 6 faces
- 12 edges
- 8 corners
- 8 vertices
→ Cylinder
→ Cone
→ Sphere :
→ 2 dimensional figures are Circle, Rect-angle, Square and Quadrilateral etc.
→ We can use Isometric sheets to denote 3-D shapes on a paper.
→ There are different section of a solid viewing.
- To view an object is by cutting or slicing.
- Is by shadow play.
- Is by looking at it from certain angles to get different views.