Jawabanmu

2014-04-27T11:10:24+07:00
Tk = 2 Rb
Rk = 1/2 Rb
V. kerucut : V. Bola
1/3 x phi R x R x T banding 4/3 x R x R x R
1/3 (1/2Rb) kuadrat x 2Rb dibanding 4/3 Rb pangkat 3 (phi dicoret)
1/3 (1/4Rb kuadrat) 2Rb dibanding 4/3 Rb pangkat 3  
1/3 (1/2 Rb pangkat 3)  dibanding 4/3 Rb pangkat 3 (Rb pangkat 3 di coret)
1/6 banding 4/3 (dikali 6 semua)
jadi 1 banding 8