Question

what is the greatest perfect square less than 55

Answer 1

I think you can find it yourself.

Answer 2

You just need to understand the meaning of a perfect square, and 55.

Answer 3

It would be 49. 7 x 7 = 49!

Answer 4

\[\begin{align}
1^2&=1\times1&=1\\
2^2&=2\times2&=4\\
3^2&=3\times3&=9\\
4^2&=4\times4&=16\\
\vdots~~&=\quad\vdots&=\vdots
\end{align}\]

Answer 5

\[49! = \prod_{n = 1}^{49} n \ne 7 \times 7\]

Answer 6

:-p