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How A dollar bill is 6.14 inches long 2.61 inches wide and 0.0043 inches thick. If you spread a billion dollar bills over the ground how many square miles would they cover?
6.14 x 2.61 = 16.0254 square inches = 0.00000000399188978 square miles x 1000000000 = 3.99188978 square miles. Call it 4 square miles.
How do you make a square out of 225 square inches?
The square root of 225 is 15 so the answer would be 15 inches.
How many 9 inch square tiles would be required to cover the entire floor?
One 9 inch square tile would presumably be 9in x 9in or 81in2, unless you are meaning 3in x 3in tile which is then 9in2. Regardless, the answer to your question is the total area of the floor (in square inches) divided by the total area of one tile (in square inches).
How many pound coins cover a football pitch?
A pound coin is 22½ mm diameter, while a football pitch is approximately 100 x 40 metres, so 4000 square metres. Each coin fits in a 22½ mm square, which is an area of 0.0225 x 0.0225 square metres. That is .0005 square metres. The ratio of the areas is 4000 / .0005 so that football pitch would take 7.9 million pound coins.
How many square feet in a 2x6x12 board?
If your talking about how much surface area it will cover, the answer is 5.5 square feet. 5.5 inches wide by 144 inches long=792 square inches. 792 square inches/12 inches per foot/12 inches per foot since your looking for square feet=5.5 square feet Another way to look at it is if you were to cut the 12 foot board down to 1 foot boards, you could double them up side by side and that would equal 11 inches x 12 inches. You would have 6 sets of 11 inches by 12 inches. So for each set you lose one inch in width for a total of 6 inches or a half foot. So you get 6 "square feet" minus the 6 inches total for the sets and end up with 5.5 square feet.
