if you mean why is 7 called 7 squared, because it's a short way of saying 7x7
and for short it's 7 squared or 7 with a little 2 next to it on the top right hand corner, and the answer is 49.
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7 metres squared = 8.372 sq yards.
7 squared is 49 and 5 squared is 25. So the difference is 49-25=24
7 squared can be expressed as a product of the same factor by multiplying 7 by itself. Therefore, 7 squared can be written as 7 x 7.
4 squared means multiplied by itself so 2 squared is 2 times 2 which is 4 if i took 7 squared, that would be 7 times 7 which is 49
7^2 + 3^2 = 58