x=√80²:2
x=√6.400
x=√3.200
x=40√2
x² + x² = 80²
2x² = 6.400
x² = 3.200
x = √3200
x = √1600 √2
x = 40 √2 cm
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x=√80²:2
x=√6.400
x=√3.200
x=40√2
x² + x² = 80²
2x² = 6.400
x² = 3.200
x = √3200
x = √1600 √2
x = 40 √2 cm