Question

Zad 12 i 13!!!!
Na jutro szybko plsss
Bardzo potrzebuję
(daje naj)
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Answer 1

Verified answer

Odpowiedź:

Szczegółowe wyjaśnienie:

Zad. 12

a) każdą z liczb pomnożyć przez 100 bo 1cm = 10mm a [tex]1cm^{2} = (10mm)^{2} = 100mm^{2}[/tex]

[tex]1cm^{2} = 100mm^{2} \\7cm^{2} = 700mm^{2}\\2,5cm^{2} = 250mm^{2}\\0,9cm^{2} = 90mm^{2}\\1,25cm^{2} = 125mm^{2}[/tex]

b)

[tex]1dm^{2} = 100cm^{2} \\4,5dm^{2} = 450cm^{2} \\6m^{2} = 60000cm^{2} \\5,4m^{2} = 54000cm^{2} \\30dm^{2} = 3000cm^{2}[/tex]

Zad. 13

a)

[tex]1a =100m^{2} \\2a =200m^{2} \\12a =1200m^{2} \\13ha =130000m^{2} \\4,5ha =45000m^{2} \\8,2a =82000m^{2} \\[/tex]

b)

[tex]100m^{2} = 1a \\400m^{2} = 4a \\850m^{2} = 8,5a \\2000m^{2} = 20a \\1ha = 100a\\4ha = 400a\\8,5ha = 850a\\[/tex]

c)

[tex]100a = 1ha\\300a = 3ha\\850a = 8,5ha\\10000m^{2} = 1ha\\60000m^{2} = 6ha\\250000m^{2} = 25ha[/tex]