Explanation:
To fence a circular park with 3 rounds, we need to find the total length of wire required to go around the park 3 times.
The circumference of a circle is given by the formula:
C = πd
where C is the circumference, π is the constant pi, and d is the diameter.
Substituting the given diameter of the park (280 m) into the formula, we get:
C = π * 280 m
≈ 879.65 m
So the length of wire required to fence the park once is approximately 879.65 m.
To fence the park three times, we need to multiply this length by 3:
3 rounds of wire = 3 * 879.65 m
= 2638.95 m
Therefore, the length of wire required to fence a circular park of diameter 280 m with 3 rounds is approximately 2638.95 m.