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1. 1,5cm х 4 = 6сm
2. 1cm х 2 + 2,5cm х 2 = 7сm
3. 1,5cm х 4 + 1cm х 4 + 0,5cm х 4 + 6cm + 4cm + 2cm + 12cm
4. 3cm + 1,5cm + 1cm + 0,5cm + 1,5cm + 1cm + 0,5cm + 1cm = 10cm
5. 1cm + 3cm + 0,5cm + 0,5cm + 0,5cm + 1cm + 1,5cm + 1cm + 0,5cm + 1cm + 0,5cm + 0,5cm + 0,5cm + 1cm + 1cm + 1cm = 15cm
7.
1. 5cm + 4cm + 2cm + 1cm + 1cm + 1cm = 14cm
Obwód = 14cm
2. 5cm + 2cm + 1cm + 1cm + 1cm + 1cm + 1cm + 3cm = 15cm
Obwód = 15cm
2 - prostokąt - 14
3 - figura obok prostokąta po prawej - 24
4 - figura pod kwadratem - 20
5 - figura pod 3 - 30
2) pierwsza od lewej - 14 cm
kolejna - 14 cm