Wzory:
[tex]V = a \cdot b \cdot c\\Pc = 2(ab+ac+bc)[/tex]
Dane:
[tex]a = 5cm\\b = 7cm\\c = 4cm[/tex]
Liczymy objętość:
[tex]V = a \cdot b \cdot c\\V = 5cm \cdot 7cm \cdot 4cm = \boxed{140cm^2}[/tex]
Liczymy pole całkowite:
[tex]Pc = 2(ab+ac+bc)\\Pc = 2(5cm \cdot 7cm + 5cm \cdot 4cm + 7cm \cdot 4cm) = 2 \cdot 83cm = \boxed{166cm^2}[/tex]
