Nomor 4,5,6 dong plz

[tex]5.volume \: kerucut = \frac{1}{3} \times \pi \times r \times r \times t \\ = \frac{1}{3} \times \frac{22}{7} \times 17.5 \times 17. \times 12 \\ = 3850 {cm}^{3} \\ volume \: bola = \frac{4}{3} \times r \times r \times r \\ = \frac{4}{3} \times \pi \times 3.14 \times 15 \times 15 \times 15 \\ = 14130 \: {cm}^{3} [/tex]
no 6 sudah disatunya dan no 4 gk tau
maaf kalo salah, semoga membantu