volume kerucut adalah...cm

Bangun Ruang Sisi Lengkung.

Nomor 1
V = 1/3 πr²t
   = 1/3 (22/7)(14 cm)²(30 cm)
   = 6160 cm³

Nomor 2.
V = 1/12 πd²t
    = 1/12 (3,14)(20 cm)²(24 cm)
    = 2512 cm³

A. volum 1/3.phi.r2.t
     1/3.22/7.14.14.30=3080 cm3
b. volum 1/3.phi.r2.t
     1/3.3,14.10.10.24=2512