We don't see a 'unit' attached to the numbers in the question. We're assuming
they're the dimensions of a rectangle, in feet.
43,560 square feet = 1 acre
340-ft x 640-ft = 156,400 square feet = 3.59 acres(rounded)
1 square mile = 640 acres340 square miles = (340 x 640) = 217,600 acres
A square mile is 640 acres, so 39.5 x 640 = 25,280 acres
Answer: 340' x 450' (153,000 square feet) = 3.51239 acres.
80 X 340 = 27200 sq ft. An acre has 43,560 sq ft therefor 80 X 340 is .6244 acres.
1 square mile = 640 acres: (206 sq. mi)x(640 acres/sq.mi) = 131840 acres
1 square mile = 640 acres Area of the circle is π x 502 square miles = π x 502 x 640 acres ~= 5,026,548 acres
There are 320 acres in a half mile by a half mile area.
To convert 140 x 340 feet to acres, first calculate the area in square feet: 140 x 340 = 47,600 square feet. Then, divide the result by the conversion factor of 43,560 square feet per acre to get 1.09 acres.
An acre is a measure of area and has two dimensions;640 acres by 640 acres is 409600 acres2 which has four dimensions.Methinks you do not mean a property that is 640 acres by 640 acres.Getting back to just 640 acres (and forgetting the "by 640 acres") as long as the shape has an area of 640 acres it doesn't matter what shape it is.The shape with an area of 640 acres with least perimeter is a circle:area = π x radius2⇒ radius = √(area/π)circumference = 2 x π x radius= 2 x π x √(area/π)= 2 x √(area x π)= 2 x √(640 x 4840 sq yds x π)≈ 6239 ydsAny other shape will have a longer perimeter - it can have any value greater than approx 6239 yards, examples a rectangle with sides:2 yds and 1548800 yds will have an area of 640 acres and a perimeter of 3097604 yds;1 yd and 3097600 yds will have an area of 640 acres and a perimeter of 6195202 yds.
1 sq mile = 640 acres = 52802 sq feet 4450 x 640/(52802) = 0.102 acre
There are 640 acres in one square mile. Therefore, 81 square miles is equal to 81 x 640 = 51840 acres.
There are 640 acres in one square mile. Therefore, 3200 square miles is equal to 3200 x 640 = 2048000 acres.