NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 2: Geometry - Problems and SolutionsQuestion 77
Class 6 - Mathematics - Unit 2: Geometry - Problems and Solutions
Question. 77
How many edges, faces and vertices are there in a sphere?
Answer:
Edges: 0, Faces: 1 curved surface, Vertices: 0.
Detailed Answer with Explanation:
Step 1: Know the words
- Face: a surface of a solid. It can be flat or curved.
- Edge: a sharp line where two faces meet.
- Vertex: a corner point where edges meet.
Step 2: Look at a sphere
- A sphere is like a ball.
- It has one curved surface all around.
- There are no flat surfaces on a sphere.
Step 3: Decide faces, edges, vertices
- Faces: 1 curved surface.
- Edges: none, because there are no two faces meeting to form a line.
- Vertices: none, because there are no edges to meet at a point.
Final answer: Edges = 0, Faces = 1 curved surface, Vertices = 0.