Question

Mark the correct alternative in the following question:

If the perimeter of a square is 40 cm, then the length of its each side is

(a) 20 cm (b) 10 cm (c) 5 cm (d) 40 cm

Answer 1

$$\begin{gathered} \mathrm{The}\mathrm{length}\mathrm{of}\mathrm{each}\mathrm{side}\mathrm{of}\mathrm{the}\mathrm{square}=\frac{\mathrm{Perimeter}\mathrm{of}\mathrm{the}\mathrm{square}}{4} \\ =\frac{40}{4} \\ =10\mathrm{cm} \end{gathered}$$

Hence, the correct alternative is option (b).