prostokąt: 2a+2b
kwadrat: 4a
trapez: a+b+c+d
deltoit: /AB/+/BC/+/CD/+/DA/ -chyba
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prostokąt: 2a+2b
kwadrat: 4a
trapez: a+b+c+d
deltoit: /AB/+/BC/+/CD/+/DA/ -chyba