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Tell which measurement is more precise 178 in or 12 ft?
They are both as precise as the measuring tools. Precision is affected by the error introduced by the measurement or in a dimension, often known as the tolerance.A measurement in inches has a greater resolution than one in feet. 12 times the resolution in fact. However, a measurement of 178 inches that can be up to 15% out is not as precise as a measurement of 12 feet with a 1% possible error.
How many square feet of tile are need for flooring?
Measure the length and width of the room in feet. If the length and or width is not an even multiple of the size of the tiles, then move that measurement up to the next even multiple. For example, if you are using 12" tile, and the length is 56", then move it up to 60", because you will have to cut the tile and waste the extra. Multiply the length X width to get square feet.
How do you know which unit of conversion factor must be in denominator?
Here is an example of a unit conversion. You want to convert, say, 10 feet to inches, and you know (or look it up) that 1 foot = 12 inches. What you have to do is to multiply either by (1 foot / 12 inches) or by (12 inches / 1 foot), since either of this is equivalent to multiplying by 1 - in other words, the result won't change (it will represent the same measurement). If you multiply by (1 foot / 12 inches), you get units of square feet divided by inches - not very useful. If, on the other hand, you multiply by the reciprocal, i.e., (12 inches / 1 foot), the feet cancel, and the only units left are inches. In summary, you put the unit of the ORIGINAL measurement into the denominator, to make them cancel. Or just try it both ways, and see in which of the two options the units cancel.
How many 12 inch blocks will cover 4200 square feet?
More information is needed EG what type of 12 inch blocks there are many(see link below). Also what way up are you using these blocks. http://www.boralbestblock.com/product-lines/masonry/standard-block/12-inch-block
What is the perimeter of an area 12 feet by 10 feet?
Sure thing, darling. The perimeter of a rectangle is calculated by adding up all the sides, so for a 12 feet by 10 feet area, you just add 12 + 12 + 10 + 10, which gives you a grand total of 44 feet. Voila, you've got your perimeter!
