Step-by-step explanation:
Since, diskette is of square shape.
Therefore, length of diagonal of a square shaped diskette is given as:
[tex]length \: of \: diagonal \: of \: diskette \\ = \sqrt{2} \times side \: of \: diskette \\ = \sqrt{2} \times 5 \\ = 5 \sqrt{2} \\ = \sqrt{ {5}^{2} \times 2 } \\ = \sqrt{25 \times 2} \\ = \sqrt{50} \: inches[/tex]
Hence, option A is the correct answer.
