Q1 of 16 Page 166

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



More from this chapter

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3

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Which are prisms among the following?

(i)


(ii)


(iii)


(iv)