Kl 5 jedno zadnie matma prosze z obliczeniami 22 punk ty

[tex]zad.7\\\\a)~~ Obw_{rownolegloboku} = 2\cdot 6~cm +2\cdot 12~cm=12~cm+24~cm=36~cm\\\\b)~~Obw_{rownolegloboku} =2\cdot 3~dm+2\cdot 10~dm=6~dm+20~dm=26~dm\\\\c)~~Obw_{rownolegloboku} =Obw_{rombu} =4\cdot 15~m =60~m[/tex]