Pertanyaan

Sebuah tabung mempunyai volume 5652 cm 3 . Berapa cm jari-jari tabung jika tingginya 18 cm ?

Sebuah tabung mempunyai volume $5652 cm^{3}$ . Berapa $cm$ jari-jari tabung jika tingginya $18 cm$ ?

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Klaim

J. Joko

Master Teacher

Jawaban terverifikasi

Pembahasan

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell V subscript tabung end cell equals cell 5.652 space cm cubed end cell row t equals cell 18 space cm end cell row cell V subscript tabung end cell italic equals cell pi r to the power of italic 2 t end cell row cell 5.652 end cell equals cell 3 comma 14 cross times r squared cross times 18 end cell row cell 5.652 cross times fraction numerator 1 over denominator 3 comma 14 end fraction cross times 1 over 18 end cell equals cell 3 comma 14 cross times r squared cross times 18 cross times fraction numerator 1 over denominator 3 comma 14 end fraction cross times 1 over 18 end cell row 100 equals cell r squared end cell row cell plus-or-minus square root of 100 end cell equals r row cell plus-or-minus 10 end cell equals r row cell 10 space cm end cell equals cell r space open parentheses gunakan italic space r italic space dengan space nilai space positif close parentheses end cell row blank blank blank end table end style$