2r = 10r = 53² + a² = r²a² = r² - 3² = 25 - 9 = 16a = 4Odp.Cięciwa - 2a = 8
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2r = 10
r = 5
3² + a² = r²
a² = r² - 3² = 25 - 9 = 16
a = 4
Odp.Cięciwa - 2a = 8