The density of a substance is usually measured in weight units per volume (for example, per cubic foot), not per area. For a square foot... it would depend how thick the slab of granite is. That may vary between different manufacturers.
45 square meters = 484.375 square feet.
You can't convert that. You can convert feet to inches, or square feet to square inches.
75 square feet.
All you have to do is multiply 8x10 to get 80 square feet.
9ANS 2 - There are 10.78 square feet in one square metre
Granite weighs an average of about 20 pounds per square foot, so a 5' by 8' (40 square feet) piece of granite would weigh approximately 800 pounds.
One ton is a unit of weight. Square Feet is a unit of space. You cannot convert the two without knowing more information such as a tone of what will cover such and such square feet, a ton of insulation will cover this much square feet to this depth. etc...
It is 40,000 square feet.
280 square feet.
220 square feet
1,205.56 square feet.
10,763.9 square feet.
There are nine square feet in one square yard.
About 55 pounds.
50 square feet = ~4.65 m2
1 (square meter) = 10.7639104 square feet.
1,620 square feet.