That means to multiply the number by itself, that is, 56 x 56.
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56 square feet is the area of 56 square feet a square foot is unit used to measure area. For example something could be 5 feet long, but it couldn't be 56 square feet long. A foot is a measurement of length, and a square foot is a measurement of area.
56 x 56 equals 3,136. This is calculated by multiplying 56 by 56, which is the same as 56 raised to the power of 2. This can also be visualized as a square with each side measuring 56 units, resulting in a total area of 3,136 square units.
"7" is the number because its square root is "49" & 49+7=56
56 square feet 56 square feet
-7 Its square is +49 and 56 less than 49 is -7. Another answer is +8.