On the saucer Excalibur, which is stuck in the mud swamp to the right of the Mill, you have to replace the broken green fuel rod. Once you do, you can enter the numbers in the computer by turning the dials (left is X, right is Y).
(see the related questions)
The coordinates X-56 Y-52 are for the nearby Pewter Moon. You input these numbers on the dials to launch Excalibur (you must replace the fuel rod first). The numbers are on the torn page from Mordred's Journal, which is under his bed. (see related questions)
The dials on the Excalibur accept the coordinates to reach a destination in space. Once you have repaired the fuel supply, you should enter the coordinates using the dials (X and Y). Unfortunately, you may find that you just "don't have enough gas" to go to a planet, so you will have to settle for someplace closer. (The Pewter Moon at X-56, Y-52.) (see related questions)
x56 and y52
7.62 is the diameter in millimeters of the projectile or the inner diameter of the bore the projectile is to be used in. 56 is the length in millimeters of the cartridge case (excluding the bullet).
With the entry in the long wall, Florida building code specifies minimum interior dimensions of 48"x56". If you don't have to build to code an adequate design can be done with 40"x54" interior dimensions and a pocket door or outward opening door.
We don't understand the shape of what you measured. If it's a box or other rectangular solid, then it would have only 3 measurements, whereas there are four listed here. We have to know what it looks like in order to begin to attack the question. In any case, since you're asking for "square footage", i.e. the area of something, and you're giving us some kind of solid to work with, we have to know what it is exactly that you want the area of. Is it the floor ? The ceiling ? The walls ? All of the outside surface ? All of the inside surface ? Both ?
If you mean to includePEMDAS, the answer is simply: 1515-55=1460. 1460x(15^5=757375)=1105767500. 1105767500x(56^10=303305489096114200)=um... that's too hard. I can't do that on paper! I did the rest on paper, but that? Uh... Let's just say "calculation error". But, the longest word of the English language is pneumoultramicroscopicsilicovolcanoconiosis. It's a lung disease. It's also the long form of pneumoconiosis. Is that good enough to pay you back for not getting the answer...? BTW, it's in the dictionary if you don't believe me. See for yourself, everyone!!! [<><> ] [ l___l ]
Unlike the hoverboard that works on manure, the saucer Excalibur needs a green fuel rod to power it. The only place to get one is from the robot prisoner in the dungeon. (see related question)
API 5L is a norme, A106 is a grade of steel API 5L is a more comprehensive specification mainly developed for line pipes used in oil and gas industry; the range of strength grades is much wider. While the lower strength grades grades A & B are comparable to A106, the other grades have much higher strengths (e.g. X42, X56, X60,...etc). Also, the quality grades are more stringent when PSL2 is applied where as rolled grades are not acceptable and rework is not allowed. Moreover, particular attention is given to toughness and toughness tests for sour services and higher pressure/ temperature classes.