A property with dimensions 465 feet by 643 feet is desired by buyers for a minimum of 1.75 acres. What is the size of the property in acres?

To determine the size of the property in acres, we first need to calculate the area of the property in square feet. The dimensions provided are 465 feet and 643 feet.

The area can be found using the formula for the area of a rectangle, which is length multiplied by width:

Area = Length × Width = 465 feet × 643 feet = 298,395 square feet.

Next, we convert square feet to acres. One acre is equal to 43,560 square feet. To find the area in acres, we divide the total area in square feet by the number of square feet in an acre:

Area in acres = Total Area in square feet / Square feet per acre = 298,395 square feet / 43,560 square feet per acre ≈ 6.86 acres.

Since the calculated area is approximately 6.86 acres, this is the size of the property. This amount satisfies the buyers' requirement of a minimum of 1.75 acres, demonstrating that there is a significant amount of property available.

Thus, the correct answer is 6.86 acres, which aligns with the answer provided.