Wzory:
[tex]V = abc\\Pc = 2(ab+ac+bc)[/tex]
Dane:
[tex]a =2cm\\b = 4cm\\c = 20cm[/tex]
Liczymy objętość:
[tex]V = abc\\V = 2cm \cdot 4cm \cdot 20cm = \boxed{160cm^3}[/tex]
Liczymy pole całkowite:
[tex]Pc = 2(ab+ac+bc)\\Pc = 2(2cm \cdot 4cm + 2cm \cdot 20cm + 4cm \cdot 20cm) = 2 \cdot 128cm = \boxed{256cm^2}[/tex]
