Question

The given solid (not drawn to scale) is a regular triangular pyramid. The net of the pyramid is wrongly drawn with $1$ extra face. Which of the following faces $(P,Q,R$ or $S$) is NOT a part of the net?

• A. $P$
• B. $Q$
• C. $R$
• D. $S$

Answer 1

The correct option is D $S$

As given in instruction that it is a regular triangular pyramid.

$P$ $Q$ $R$ are placed in consecutive way which show that they all have equal shape.

But, we can not evaluate the size of $S$ because it lies only with base which is equal to $P$ $Q$ $R$

So, $S$ is not a part of net.