CBSE Class 7 Maths Chapter 15 Notes Visualising Solid Shapes

Visualising Solid Shapes Class 7 Notes Conceptual Facts

Solid Shapes:
1. Cuboid: Cuboid has length, breadth and height.

2. Cube: Cube has all sides equal.

3. Prism:
(i) Triangular prism:

(ii) Rectangular prism:

4. Pyramid:
(i) Triangular pyramid

(ii) Rectangular pyramid:

5. Tetrahedron: A triangle pyramid whose all the face are equilateral triangles of same size.

6. Cylinder:

7. Cone

8. Sphere:

Euler’s Formula:
V + F – E = 2
Net of 3-D shapes: Net is an arrangement of figures connected with their edges in the same plane.

(i) Net of cube:

(ii) Net of  Cylinder

(iii) Net of pyramid:

(iv) Net of Cone