Prosze Was o pomoc w MATEMATYCE. zadania do zrobie to 6 i 7 . Zadania w załączniku
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b=4 i 9/10 dm - 1 i 9/10dm= 3dm=30/10dm
Obw=2a+2b
Obw=2*49/10+2*30/10
Obw=98/10+60/10
Obw=158/10
Obw=15 i 8/10 dm
P=a*b
P=49/10*30/10
P=1470/10
P=14,7dm² 2)2/3 razy 27=18