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Z twierdzenia Pitagorasa obliczmy wysokość trójkąta
h² + 8² = 17²
h² + 64 = 289
h² = 289 - 64
h² = 225
h = √225
h =15
P=½ * 16 * 15 = 120 cm²
promień wpisanego = ⅓h = ⅓ * 15 = 5 cm
promień opisanego = ⅔h = ⅔ * 15 = 10 cm