Students can go through AP 8th Class Maths Notes Chapter 10 Visualising Solid Shapes to understand and remember the concepts easily.
Class 8 Maths Chapter 10 Notes Visualising Solid Shapes
→ Recognising 2D and 3D objects.
→ Recognising different shapes in nested objects.
→ 3D objects have different views from different positions.
→ A map is different from a picture.
→ A map depicts the location of a particular object/place in relation to other objects/ places.
→ Symbols are used to depict the different objects/places.
→ There is no reference or perspective in a map.
→ Maps involve a scale which is fixed for a particular map.
→ For any polyhedron, F + V- E = 2
where ‘F’ stands for number of faces, V stands for number of vertices and E stands for number of edges. This relationship is called Euler’s formula.
→ Plane Shape : A flat figure or a closed two dimensional figure like triangle, square, rectangle, polygon, elipse, circles are called plane shapes..In other words-they also
called 2D – Shapes.
These are basic plane shapes.
→ Solid Shapes: The shapes which have 3 dimensions that are length, breadth, height/ depth are called solid shapes. They are also called 3d shapes.
Examples : 