Hej!
[tex]a] \ 2 \ cm^2=2\cdot1 \ cm^2=2\cdot(10 \ mm)^2=2\cdot100 \ mm^2=200 \ mm^2\\\\b] \ 11 \ cm^2=11\cdot1 \ cm^2=11\cdot(10 \ mm)^2=11\cdot100 \ mm^2=1100 \ mm^2\\\\c] \ 8 \ dm^2=8\cdot1 \ dm^2=8\cdot(100 \ mm)^2=8\cdot10 \ 000 \ mm^2=80 \ 000 \ mm^2\\\\d] \ 40 \ dm^2=40\cdot1 \ dm^2=40\cdot(100 \ mm)^2=40\cdot10 \ 000 \ mm^2=400 \ 000 \ mm^2[/tex]
Pozdrawiam! - Julka
