diketahui jari jari kerucut 7 cmdan volume nya 98 cm3 hitunglah Tinggi nya????.??? serta buktikan

Volume = 1/3 phi r² t
98 = 1/3 x 22/7 x 7² t
294 = 154t
t = 21/11 cm = 1,91 cm

Volume = 1/3 πr²t
        98 = 1/3 x 22/7 x 7 x 7 x t
        98 = 22/21 x 7 x 7 x t
        98 = 51,37t
          t  = 1,91

Bukti||

V = 1/3 x 22/7 x 7 x 7 x 1,91
   = 22/21 x 7 x 7 x 1,91
   = 98,04
   = 98,0

Semoga Membantu!!!