Question

Find the area of a square lawn whose perimeter is 84 m.​

Answer 1

Step-by-step explanation:

Given,

Perimeter of a square lawn = 84m

∴ By the problem,

=>    84 m =  4 × side

=>    $\frac{84}{4} m$ = side

=>    21 m = side

We got one side of the square lawn.

∴ Area of the square lawn =  s × s

                                            = 21 m × 21 m

                                             = 441 $m^{2}$ (Ans)