Question 12 Marks
Can a polyhedron have$:(i) 3$ triangles only?$\ (ii)\ 4$ triangles only?$\ (iii) $ a square and four triangles?
Answer
View full question & answer→$(i)$ No.
$(ii) $Yes.
$(iii)$ Yes.
$(ii) $Yes.
$(iii)$ Yes.
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Question 22 Marks
Name the polyhedron that can be made by folding each of the following nets:
$(i)$
$(ii)$
$(iii)$
$(i)$
$(ii)$
$(iii)$
Answer
View full question & answer→$(i)$ Triangular prism. It has $3$ rectangles and $2$ triangles.
$(ii)$ Triangular prism. It has $3$ rectangles and $2$ triangles.
$(iii)$ Hexagonal pyramid as it has a hexagonal base and $6$ triangles.
$(ii)$ Triangular prism. It has $3$ rectangles and $2$ triangles.
$(iii)$ Hexagonal pyramid as it has a hexagonal base and $6$ triangles.
Question 32 Marks
The Dimension of a cubical is $6 \ cm \times 4 \ cm \times 2 \ cm$. Draw two different nets of it.
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