Kll = 4 x s
40 = 4s
s = 40/4 = 10 cm
diagonalnya = √10² + 10² =√200 =10√2 cm
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Kll = 4 x s
40 = 4s
s = 40/4 = 10 cm
diagonalnya = √10² + 10² =√200 =10√2 cm