Question

Which of the following is not a prism ?

Answer 1

Correct option is B.

Because, a prism has a solid shape consisting of two equal ends, flat faces or surfaces and identical cross-section across its length.

$$A$$, $$C$$ and $$D$$ have two ends as square, triangle and pentagon respectively and their cross-section throughout is same.

So, option $$B$$ which is not a three dimensional figure is only non prism figure given.

The correct answer is option (b).