It means that something (usually people) is 6 foot 4 inches long. This can also be written as 6'4" where the appostrophe means foot and the quote symbol means inches. There are 12 inches in a foot which means 6 foot 4 inches is 6*12 + 4 inches = 76 inches.
There are 2.54 centimeters in an inch which means 76 inches is almost the same as 193cm.
Assumption: 6 x 6 is using inches as the unit (half a foot) and a 4 foot board means 4 square feet of board. Each square foot of board can be cut into four half foot x half foot pieces. Therefore, the 4 foot board would be able to make 16 half foot x half foot (6 inch x 6 inch) blocks.
They were cuboid, 6 foot 6 inches long, 4 foot wide and 2 foot 4 inches high
4 is to 6 as 5 is to X. 4/6 = 5/X. X = 7.5 feet.
1 foot is 304.8mm. 304.8mmx4 is 1219.2mm (in 4 foot) and 6 foot is 304.8*6, i.e 1828.8mm
48
6 x 6 x 4 = 144 cubic feet
Assumption: 6 x 6 is using inches as the unit (half a foot) and a 4 foot board means 4 square feet of board. Each square foot of board can be cut into four half foot x half foot pieces. Therefore, the 4 foot board would be able to make 16 half foot x half foot (6 inch x 6 inch) blocks.
They were cuboid, 6 foot 6 inches long, 4 foot wide and 2 foot 4 inches high
My dick
4 is to 6 as 5 is to X. 4/6 = 5/X. X = 7.5 feet.
16foot
$1,000,000
6 foot by 4 foot
6 foot by 4 foot
1 foot is 304.8mm. 304.8mmx4 is 1219.2mm (in 4 foot) and 6 foot is 304.8*6, i.e 1828.8mm
48
If you mean how tall, then 6 foot, 4 inches. That is above average height and pretty 'big.'