jari2 suatu kerucut 12cm dan garis pelukisnya 15cm,hitunglah volume kerucut!

Bangun Ruang Kerucut
r = 12 cm
s = 15 cm

t² = s² –r²
t² = 15² – 12²
t² = 225 – 144
t = √81
t = 9 cm

V = 1/3 × πr²t
V = 1/3 × 3,14 × 12 × 12 × 9
V = 1.356,48 cm³