panjang diameter alas suatu kerucut 20 cm dan tingginya 12 cm, volume kerucut = ..... (phi = 3,14 )

jari jari = 10
3.14 kali 10 kali 10 = 314
314 kali 12 = 3768
3768/3 = 1256

jawaban = 1256

Dik :
- d = 20 cm ---> r = 1/2 x 20 cm
= 10 cm
- t = 12 cm
- phi = 3,14
Dit : Volume Kerucut = ?
Jawab :
VKerucut = phi x r kuadrat x t /3
= 3,14 x 10kuadrat x 12 /3
= 3768 / 3
= 1256 cm pangkat 3