Number of edges in a triangular prism is _____.

Using Euler’s formula, find the values of $\mathrm{P}, \mathrm{Q}, \mathrm{R} \mathrm{and} \mathrm{S}$ respectively.

(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

State $\text{'}T\text{'}$ for true and $\text{'}F\text{'}$ for false.

(i) Pentagonal prism has $5$ pentagons.

(ii) Euler’s formula is true for all three dimensional figures.

(iii) All cubes are prism.

(iv) A polyhedron with least number of faces is known as a triangular pyramid.