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(a) Can a polyhedron have 10 faces, 20 edges and 15 vertices? Justify your answer. (b) A glowing bulb is kept above the following solids. Name the shape of the shadows obtained in each case. Attempt to give a rough sketch of the shadow. [4 MARKS]

Answer» (a) Can a polyhedron have 10 faces, 20 edges and 15 vertices? Justify your answer.

(b) A glowing bulb is kept above the following solids. Name the shape of the shadows obtained in each case. Attempt to give a rough sketch of the shadow.


[4 MARKS]


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