Pole jednej sciany:
[tex]P=(1cm)^2=1cm^2[/tex]
[tex]a) \\S=2*5P+2*4P+2*2P=10P+8P+4P=22P=22*1cm^2=22cm^2\\b) \\S=2*5P+2*3P+2*3P=10P+6P+6P=10P+12P=22P=22cm^2[/tex]
[tex]c) \\S=2*5P+2*5P+P+P=10P+10P+2P=22P=22cm^2\\d) \\S=2*5P+2*3P+2*3P=10P+6P+6P=10P+12P=22P=22cm^2\\e) \\S=2*5P+2*3P+2*3P=22P=22cm^2[/tex]
