Class 8 Maths – Chapter 10

Visualising Solid Shapes

STEP 8: Quick Revision Sheet

📌 1. What are Solid Shapes?

Solid shapes are 3-dimensional (3D) objects which have length, breadth and height.

Examples: Cube, Cuboid, Sphere, Cylinder, Cone

📌 2. Parts of a Solid Shape

• Face: Flat surface of a solid
• Edge: Line segment where two faces meet
• Vertex: Point where edges meet

Example (Cube): 6 Faces, 12 Edges, 8 Vertices

📌 3. Views of Objects

• Top View: Seen from above
• Front View: Seen from front
• Side View: Seen from side

Same object may look different from different views.

📌 4. Nets of Solid Shapes

A net is a flat pattern which can be folded to make a solid.

Cube has many possible nets.

📌 5. Maps & Directions

Maps help us understand:

• Location
• Distance
• Direction

📌 6. Rotation

Rotation means turning an object around a fixed point or axis.

Rotation does not change the shape or size.

🎯 Exam Tips

• Draw neat diagrams
• Label faces, edges and vertices clearly
• Write short and correct definitions
• Practice view-based questions