Question

Q.no.25- man covers a distance of 36 metre while going around a square field four time . Find side of the square
how much wire will be needed for fencing it thrice ?find the cost of the wire if one metre cost is 2.5
also find cost of levelling the ground if one metre cost is *3.​

Answer 1

Answer:

side= 2.25m

fencing cost= 67.5

leveling cost= 15.18

Step-by-step explanation:

Side

36m = roam around field 4 times

36m = (perimeter) *4

36/4  = (perimeter)

9 = (perimeter)

9 = 4*side

side = 9/4 = 2.25m

Fencing

Fencing thrice = (perimeter) *3

= 9 * 3 = 27m

1m = 2.5 , 27m=?

= 27*2.5 = 67.5

cost = 67.5

Leveling

Area = 9/4 * 9/4

= 81/16 $m^{2}$

cost = 81/16 *3

= 243/16

= 15.18