Diketahui volume kerucut 9856 cm kubik. Jari jari kerucut tersebut 14cm. Hitunglah tinggi kerucut! - tolong bantu yaa :)

Bab Bangun Ruang
Matematika SMP Kelas VIII

kerucut
volume = 1/3 x π x r x x r x t = 9.856
                1/3 x 22/7 x 14 x 14 x t = 9.856
                 616/3 x t = 9.856
                 t = 9.856 x 3/616
                 t = 48 cm

volume kerucut = 1/3 π r²t
9.856 = 1/3 × 22/7 × 14² × t
9.856 = 1/3 × 616t
29.568 = 616t
t = 48 cm