Gujarat BoardEnglish MediumSTD 8MATHSVisualising Solid Shapes2 Marks
Question
How many faces, edges and vertices does a pyramid have with n sided polygon as its base?
✓
Answer
In a pyramid, the number of vertices is $1$ more than the number of sides of the polygon base, i.e. vertices $= n + 1$.
Also, the number of faces is $1$ more than the number of sides of the polygonal base, i.e. faces $= n + 1$
But the number of edges is $2$ times the number of sides of the polygonal base, i.e. edges $= 2n$.
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