Yes, a piece of land measuring 210 feet by 210 feet is very close to 1 acre, slightly exceeding it. Multiplying 210 feet by 210 feet yields an area of 44,100 square feet. Given that a standard acre contains 43,560 square feet, a 210-foot square plot is roughly 540 square feet larger than a single acre, translating to about 1.012 acres. Since a mathematically precise 1-acre square requires sides of approximately 208.71 feet, rounding up to 210 feet provides a convenient, easily measurable approximation that covers slightly more than one full acre.