Jawaban:

Diketahui:

Diameter drum begin mathsize 14px style 56 space cm end style.

Jari-jari drum begin mathsize 14px style 56 division sign 2 equals 28 space cm end style.

Tinggi drum begin mathsize 14px style 1 comma 5 space straight m end style.

Harga minyak goreng begin mathsize 14px style Rp 10.000 comma 00 end style per liter.

Ingat bahwa begin mathsize 14px style 1 space liter equals 1 space dm cubed end style.

Tentukan terlebih dahulu volume atau kapasitas yang dimiliki drum minyak tersebut.

Gunakan rumus volume tabung, yaitu:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row straight V equals cell πr squared straight t end cell row blank equals cell 22 over 7 cross times open parentheses 28 space cm divided by 10 space dm close parentheses squared cross times open parentheses 1 comma 5 space straight m cross times 10 space dm close parentheses end cell row blank equals cell 22 over 7 cross times open parentheses 2 comma 8 space dm close parentheses squared cross times 15 space dm end cell row blank equals cell fraction numerator 22 cross times 7 comma 84 cross times 15 over denominator 7 end fraction end cell row blank equals cell fraction numerator 2.587 comma 2 over denominator 7 end fraction end cell row blank equals cell 369 comma 6 space dm cubed end cell row blank equals cell 369 comma 6 space liter end cell end table end style

Harga minyak goreng begin mathsize 14px style Rp 10.000 comma 00 end style per liter.

Drum memiliki volume begin mathsize 14px style 369 comma 6 space liter end style, maka harga minyak goreng curah dalam begin mathsize 14px style 1 end style drum yaitu:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell Harga space 1 space drum end cell equals cell Volume cross times Harga divided by liter end cell row blank equals cell 369 comma 6 space down diagonal strike liter cross times Rp 10.000 comma 00 divided by down diagonal strike liter end cell row blank equals cell Rp 3.696.000 comma 00 end cell end table end style

Sehingga diperoleh harga minyak goreng curah dalam begin mathsize 14px style 1 end style drum adalah size 14px Rp size 14px 3 size 14px. size 14px 696 size 14px. size 14px 000 size 14px comma size 14px 00.

Penjelasan: