Question

the area of square is hundred metre square then boundary is​

Answer 1

Answer:

40 m

Step-by-step explanation:

$area$ of a square $= side^{2}$

and  $perimeter(boundary)$ of a square $= 4$ × $side$

here area = $100m^{2}$  $= side^{2}$

therefore side = $\sqrt{100m^{2}$ = 10m

as side = 10m,

therefore boundary $= 4$ × $side$

                                = 4 × 10 m

                                   = 40m