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:
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 [tex]m^{2}[/tex]
cost = 81/16 *3
= 243/16
= 15.18