Matematika

Pertanyaan

tolong dong Gmna cara penyelesaian nya,plisss
tolong dong Gmna cara penyelesaian nya,plisss

2 Jawaban

  • Volume = v1 + v2
                 = (3,14x10x10)x14 + (3,14x5x5)x7
                 = 4.396 + 5.49,5
                 = 4.945.5 cm3
  • [tex]V_{kecil}=\pi\times r_{kecil}^2\times t_{kecil}\\=\frac{22}{7}\times 5^2\times 7\\=22\times 25\\=550\\\\V_{besar}=\pi\times r_{besar}^2\times t_{besar}\\=\frac{22}{7}\times 10^2\times 14\\=22\times 100\times 2\\=4400\\\\V_{total}=V_{kecil}+V_{besar}\\=550+4400\\=4950[/tex]