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górna podstawa: 2*5=10cm
Boki:10*3=30
30 *4= 120 cm
120+50+10=180cm ; ) oczekuje na naj ....
Pgp=2cm*5cm=10cm²
Ppb=4*(10cm*3cm)=120cm²
120cm²+50cm²+10cm²=180cm²