assume that you have an 8 foot by 12 foot (8' x 12') sheet of copper?
456802
Let x = length of the corner being cut out.\nThe volume is then\nV = x(12-2x)(8-2x)\nV = x(96 - 24x - 16x + 4x^2)\nV = 4x^3 - 40x^2 + 96x\nTake the derivative of V\nV' = 12x^2 - 80x + 96\nSet equal to 0 and solve for x\n12x^2 - 80x + 96 = 0\n3x^2 - 20x + 24 = 0\nx = (2sqrt(7) + 10)/3\n= 5.097 or 1.569\n12-2(1.569) = 8.861\n8-2(1.569) = 4.861\nThus, the dimensions are\n1.569 by 8.861 by 4.861
409279
The perimeter is the distance around the edge so in this case you would add 6, 8 and 10 together to get 24 inches.
466747
touch a metal which is well grounded.
684908
About 1/30" of an inch, or 0.8 mm
83333
None, just one foot, if it is the proper size.
888623
by area of wire you can.
589786
24 feet X 8 feet... check this website to confirm.
887687
Below is a link to a practical for finding the % copper in pennies.  The same method will work using brass in place of pennies.\n\nhttp://www.creative-chemistry.org.uk/alevel/module5/documents/N-ch5-17.pdf
494789
Nine bricks\n\nEight would leave you 3/8 inch short.
1136755
The wire is 7/8 m long and if it has to be cut into 14 pieces then \n(7/8) / 14 = 1/16\n\nTherefore, the length of each is 1/16m
956315
The simplest way is to cut it into five slices, each with an arc of 72 degrees (or 2*pi/5 radians). You could probably also figure out a way to cut it into strips so that each strip has equal area, but that would be significantly more complicated.
614589
width = 5 \nlength = 12
460116
It depends what it looks like.\nWithout seeing the actual picture I cannot find the area.
1053942
depends on the type of metal
375669
Copper in cables can certainly be recycled, and fetches quite a good price. You'd need to collect a reasonable weight of it though, strip off the insulation, then take it to a scrap metal dealer to have it weighed in.
1161635
2\n\nI think you would divide 8.5 by 4.25.
184255
The best thing would be a copper wire attached to a metal bar into the earth. Other choice would be the gorund wire in an electrical outlet (careful not to hit live wires) or to a rubber mat on a concrete floor