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In Fig. 2.4, BCDE is a square and a 3D shape has been formed by joining the point A in space with the vertices B, C, D and E. Name the 3D shape and also its (i) vertices, (ii) edges and (iii) faces. |
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Answer» The 3D shape formed is a square pyramid. (i) Vertices are A, B, C, D and E. (ii) Edges are AB, AC, AD, AE, BC, CD, DE and EB. (iii) Faces are: square BCDE and triangles ABC, ACD, ADE and ABE. |
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