NCERT - Mathematics

Book: NCERT - Mathematics

Chapter: 10. Visualising Solid Shapes

Subject: Maths - Class 8th

Q. No. 1 of Exercises 10.3

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Can a polyhedron have for its faces

(i) 3 triangles?

(ii) 4 triangles?

(iii) A square and four triangles?

(i) No, such a polyhedron is not possible. A polyhedron has minimum 4 faces

(ii) Yes, a triangular pyramid has 4 triangular faces

(iii) Yes, a square pyramid has a square face and 4 triangular faces


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