10.
a)
[tex]1 {dm}^{2} = 100 {cm}^{2} [/tex]
b)
[tex]1 {mm}^{2} = 0.01 {cm}^{2} [/tex]
c)
[tex]1a = 100 {m}^{2} [/tex]
d)
[tex]1 {m}^{2} = 0.000001 {km}^{2} [/tex]
11.
[tex]169 = a \times a \\ {a}^{2} = 169 \\ a = \sqrt{169} = 13[/tex]
Zatem obwód
[tex]13 \times 4 = 52[/tex]
12.
Plakat Eli
[tex]45cm = 4.5dm \\ 20cm = 2dm \\ \\ \\ 4.5 \times 2 = 9 {dm}^{2} [/tex]
Plakat Krysi
[tex]6 \times 6 = 36 {dm}^{2} [/tex]
Zatem
a) Fałsz
b) Prawda
[tex]36 \div 9 = 4[/tex]
Myślę że pomogłem ;)
