 
<translate> Mgbe Bill mụsịrị geometry, ọ chọrọ ịgụta ole ahịrị o sere. O sere otu ahịrị n'akụkụ nke ọ bụla. Ọ bụrụ na o sere triangle iri na abụọ, square asatọ, na pentagon anọ, ole ka o sere? Ka anyị zaa ya otu otu: <eng> After geometry class, Bill wants to count how many lines he drew. For each shape, he drew one line per side. If he drew 12 triangles, 8 squares, and 4 pentagons, how many lines did he draw? Let's answer step by step: 