A rectangular prism has $8$ faces, $10$ edges and $10$ vertices.

_____ is a polyhedron whose base is a polygon (of any number of sides) and whose lateral faces are triangles with a common vertex.

A minimum of how many colors will be required so that two adjoining portions in the given figure may have the same color?

_____ is a polyhedron whose base and top are congruent polygons and whose other faces i.e. lateral faces, are parallelograms in shape.

(i) A pyramid on an $n-$sided polygon has $P$ faces.

(ii) A rectangular prism has $Q$ faces.

(iii) The net can be folded to make a $R$.

(iv) is the $S$ view of

A solid right prism made of iron has a cross-section of a triangle of sides $5 cm, 10 cm, 13 cm$ and of height $10 cm$. If one cubic $cm$ of iron weighs $7 g$, then the weight of the prism is (approximately) _____.

Write the name of the $3\mathrm{D}$ shape shown in Fig.  Also write the number of faces, vertices and edges.

Write down the number of edges of a Tetrahedron.

Is a square prism same as a cube$?$