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Pp= 1/2 · 9 cm · 9 cm = 1/2 · 81 cm² =40,5 cm²
Pc= 18 cm² · 3 + 40,5 cm² = 54 cm² + 40,5 cm²= 94,5 cm²
Odp. Pole całkowite tego ostrosłupa wynosi 94,5 cm²