Mahabir Singh Solutions for Chapter: Visualising Solid Shapes, Exercise 2: ACHIEVERS SECTION (HOTS

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

Match the following prisms given in Column-I with their respective nets (not drawn to scale) given in Column-II.
    

Column -I		Column -II
P.		$\left(\mathrm{i}\right)$
Q.		$\left(\mathrm{ii}\right)$
R.		$\left(\mathrm{iii}\right)$
S.		$\left(\mathrm{iv}\right)$

Select the INCORRECT match.

Choose the correct option to replace $P, Q, R, S$

(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.