Nomor 4,5,6 dong plz

Nomor 4,5,6 dong plz

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