You have specified three dimensions. A rectangular area will have a length and a width. If your length is 90m, is the width 25mm or 12mm? I can't make sense of this as it is.
OD-51mm x Bore-25mm x Depth-12mm
25mm = 0.025 meters (you divide mm by 1,000 to convert to meters).
Divide by 1000 to change millimeters to meters; 25mm = 0.025m.
62.5
25mm2 = 5mm * 5mm
0.0025m
50mm x 24mm or 54mm x 25mm
25mm * 8 = 200 mm = 200/1000 metres = 0.2 metres.
25 mm = 0.025 meterVolume = 7,200 m2 x 0.025 m = 180 m3
Perimeter = 20mmGiven: Area = 25mmAssuming that the figure is a square:side:= square root of area= square root of 25mm= 5mmPerimeter:= 4 * sides= 4 * 5mm= 20mm
The amperage rating is dependent upon the insulation rating. A pair of 25mm squared wires touching each other are rated at 131 amps. Three 25mm squared wires touching each other are rated at 110 amps.
This question cannot be answered sensibly. A gallon is a measure of volume, with dimensions [L3]. A millimetre is a measure of distance, with dimensions [L]. The two measure different things and basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.