Question

The area of square plot ,4900m find the length of rope which can
be go 4times around the boundaries of this plot

Answer 1

Solution :

Let side of a square plot = a m

Area of the plot = 4900 m² ( given )

=> a² = ( 70 m )²

=> a = 70 m

Now ,

Length of the rope 4 times around the

boundaries = 4 × Perimeter of the plot

= 4 × 4a

= 16 × 70m

= 1120 m

•••••

Answer 2

4900=s*s
70=side
perimeter=70*4
= 280
280*4 = 1120 is the required length of rope