Odpowiedź:
Pp = π*r² = 9 π cm² ⇒ r² = 9
r = 3 cm
h = r = 3 cm i l = 3√2 cm
V = [tex]\frac{1}{3}[/tex] Pp *h = [tex]\frac{1}{3}[/tex] * 9 π* 3 = 9 π
V = 9 π cm³
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Pc = Pp + Pb = 9 π + 2π r*l = 9 π + 2π*3*3√2 = 9 π + 18√2 π
Pc = 9 π*( 1 + 2√2) cm²
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Szczegółowe wyjaśnienie:
