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P = 1/2 * 2cm * 1cm + 1/2*(2cm+4cm)*2cm = 1cm² + 6cm² = 7cm²
Różowe
P = 1/2*(10m+6m)*8m + 1/2*(6m+15m)*8m = 64m² + 84m² = 148m²
Żółte
P = 6cm*3cm + 2*1/2*(2,5cm+1cm)*2cm = 18cm² + 7cm² = 25cm²
Czerwone
P = 1dm*1dm + 1dm*4dm + 1/2*1dm*1dm = 1dm² + 4dm² + 1/2dm² = 5,5dm²
przykre że nie umiesz tego rozwiązać :(