volume sebuah kerucut 1.078 cm kubik .jari jari kerucut tersebut 7 cm ,tinggi kerucut...cm

Volume = 1/3 x πr^2 x t
1078 = 1/3 x 154 x t
t = 1078 x 3/1 : 154
t = 3234 : 154
t = 21 cm

V = 1/3 x luas alas x tinggi
1.078 = 1/3 x (22/7 × 7 x 7) x tinggi
t = 1.078 : 1/3 x 154
= 1.078 × 3 : 154
= 21 cm