Graniastosłup trójkątny:
Pb = a x H + b × H + c × H
Pb = 5 × 8 + 12 × 8 + 13 × 8 = 240cm²
P = 60 + 240 = 300cm²
V = ½Pp × H
V = ½ × 60 × 8 = 240cm³
Graniastosłup czworokątny:
Pb = a × H × 4
Pb = 5 × 10 × 4 = 200dm²
P = 48 + 200 = 248dm²
V = ½ × 48 × 10 = 240dm³
Graniastosłup sześciokątny:
Pp = (26 + 14) × 8 × 2 = 640cm²
Pb = b × H × 2 + c × H × 4
Pb = 14 × 15 × 2 + 10 × 15 × 4 = 1020cm²
P = 640 + 1020 = 1660cm²
V = ½ × 640 × 15 = 4800cm³
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Graniastosłup trójkątny:
Pb = a x H + b × H + c × H
Pb = 5 × 8 + 12 × 8 + 13 × 8 = 240cm²
P = 60 + 240 = 300cm²
V = ½Pp × H
V = ½ × 60 × 8 = 240cm³
Graniastosłup czworokątny:
Pb = a × H × 4
Pb = 5 × 10 × 4 = 200dm²
P = 48 + 200 = 248dm²
V = ½Pp × H
V = ½ × 48 × 10 = 240dm³
Graniastosłup sześciokątny:
Pp = (26 + 14) × 8 × 2 = 640cm²
Pb = b × H × 2 + c × H × 4
Pb = 14 × 15 × 2 + 10 × 15 × 4 = 1020cm²
P = 640 + 1020 = 1660cm²
V = ½Pp × H
V = ½ × 640 × 15 = 4800cm³