2√5 = √20
√6 ² + √14 ² = √20 ²
6 + 14 = 20
20 = 20
tak, jest prostokątny.
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2√5 = √20
√6 ² + √14 ² = √20 ²
6 + 14 = 20
20 = 20
tak, jest prostokątny.