Oblicz pole zaznaczonego na rysunku ( załącznik) przekroju ostrosłupa prawidłowego.
[/tex]
h ² + ( 2 √ 2 ) ² = 8 ²h ² = 64 - 8h ² = 56h = √ 56h = 2 √ 14P = ½ × a × hP = ½ × 4 √ 2 × 2 √ 14P = 4 √ 2 × √ 14P = 4 × 2 × √ 7P = 8 × √ 7
Proszę ; *
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[/tex]
h ² + ( 2 √ 2 ) ² = 8 ²
h ² = 64 - 8
h ² = 56
h = √ 56
h = 2 √ 14
P = ½ × a × h
P = ½ × 4 √ 2 × 2 √ 14
P = 4 √ 2 × √ 14
P = 4 × 2 × √ 7
P = 8 × √ 7
Proszę ; *