Question

Solve question 14,15​

Answer 1

14.60

15.AREA OF SQUARE=6889m²

AREA OF SQUARE=S×S=S²

S²=6889

S=83

HERE S IS THE SIDE

PERIMETER=4S

• 4×83
• 332m

Answer 2

Step-by-step explanation:

14

let total rows are = n.

let first row has n soldiers .

so second row will have n soldiers.

and similarly third row have also n soldiers.

now, n+ n+n+ n+.........=3600

so n+n......upto n terms = n^2 =3600

so n = 60.

so there are total 60 rows.

15.

area of square is = 6889

so let length of all sides of square= l

so l.l = 6889

so l =undereoot of 6889 = 83

so perimeter of square = 4l = 4*83= 332