Side x side
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If one side of a square is 3 cm, you must do this...
$${\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{3}} = {\mathtt{9}}$$
The answer is nine cm2
Side x side
_________________________________________________
If one side of a square is 3 cm, you must do this...
$${\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{3}} = {\mathtt{9}}$$
The answer is nine cm2