正方形计算器：面积、周长和对角线
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面积 = side**2；周长 = 4*side；对角线 = sqrt(2)*side
- side
- 边长 · m
Enter values to see results and the formula.
Example values are ready
Review the inputs, then select Calculate.面积 = side**2；周长 = 4*side；对角线 = sqrt(2)*side