It's the area covered by a square that's 11-ft on each side.
But that description is just to give you a feeling for the size. 121-ft2 doesn't
have to be square. It can be any shape at all.
11
11 ft
121ft² = 11.2m²
121ft² = 11.24m²
he made the theorem C squared = A squared + B squared and A squared = C squared - B squared or B squared = C squared - A squared
9x squared-15x squared = -6
2 squared X 3 squared = 5 squared
1 squared = 1 2 squared = 4 3 squared = 9 4 squared = 16 5 squared = 25 6 squared = 36 7 squared = 49 8 squared = 64 9 squared = 81 10 squared = 100
100cm squared = 0.01 metres squared
9 squared is 81 and 16 squared is 256
104
1 squared plus 8 squared or 4 squared plus 7 squared