Materi : Bangun ruang dan Bangun datar
Pembahasaan soal :
V.t = 4 × n × r × t
V.t = 4 × 22/7 × 10,5 × 15
V.t = 4 × 22/7 × (10,5 × 10,5) × 15
V.t = 4 × 22/7 × 110,25 × 15
V.t = 4 × 22 × 110,25 × 15/7
V.t = 88 × 110,25 × 15/7
V.t = 9.702 × 15/7
V.t = 145.530/7
V.t =