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P. 48

Penyelesaian:



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                 Soal 4:

                 Sebuah plat seng lebarnya 60 cm akan dibuat talang air dengan cara

                 melipat kedua sisinya sama panjang. Tentukan ukuran penampang
                 talang agar talang itu dapat dialari air sebanyak mungkin!



                 Penyelesaian:


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                                                                                                         [Date]    47
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