a rice field is pentagon in shape. The length of its sides are 105 m 215 m 158 m 197 m and 155 m respectively. If the owner wants to fence it with three strands of barbed wire How many meters of wire in all will be needed?

Answer 1

To find the perimeter of the rice field, we need to add the lengths of all five sides:
105 m + 215 m + 158 m + 197 m + 155 m = 830 m
Since the owner wants to fence it with three strands of barbed wire, we need to multiply the perimeter by 3:
830 m * 3 = 2490 m
Therefore, a total of 2490 meters of wire will be needed.