A mile is a unit of length; an acre is a unit of area. You can't convert between the two. A square mile is 640 acres. If this is what you want, divide the acres by 640 to obtain miles.
Since there are three measures given, it is reasonable to assume that the question concerns a triangular plot with sides of 70, 100 and 146 units. Assume that these measures are in feet. In that case, the area is 3110.82 square feet.
43560 sq ft = 1 acre80 ft x 146 ft = 11680 sq ft= 11680 ÷ 43560 acre= 292/1089 acre≈ 0.268 acre
146 sq yds
0.096 acres.
There are 5280 feet in one mile. Therefore, 146 miles is equal to 146 x 5280 = 770880 feet.
479.00264 feet
146 cm = 4.79 feet
About 12 feet
Area is the product of length and width of the room. It is easier to calculate in square inches when the dimensions are a mixture of feet and inches, and then divide the product by 144 to convert it to square feet. 12'2" x 10'7" = 146" x 127" = 18,542 square inches = 129 square feet (rounded).
There are 0.3048 metres in one foot. Therefore, rounded to two decimal places, 146 metres is equal to 146/0.3048 = 479.00 feet.
146 square feet is a decent size for a bedroom for one person.