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z tw. Pitagorasa:
2²+h²=5²
4+h²=25
h²=25-4
h²=21
h=√21
h²+6²=y²
(√21)²+36=y²
21+36=y²
y²=57
y=√57
aj w drugiej kolumnie nie '47' tylko '57'
przepraszam
2²+h²=5²
4+h²=25
h²=25-4
h²=21
h=√21
h≈4,58
h²+6²=y²
(√21)²+36=y²
21+36=y²
y²=57
y=√57
y≈7,55