There are 9 square feet in one square yard. Therefore, 680 square feet is equal to 680/9 = 75.5 recurring (that is, 75.5555...) square yards.
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34x20=680
The amount of feet per btu varies according to many factors such as how tall the ceiling is or how many windows there are. In most houses, usually you need about 20 to 22 btu per square foot. So, divide 15000 by these and you get it will heat anywhere from about 680 to 750 square feet.
The square root of 680 is an irrational number and it is about 26.0768 rounded to 4 decimal places
680 of them.
No, 31 miles is actually equal to 163 680 feet (1 mile = 5280 feet)