Volume = volume tabung + 1/2 volume bola
= πr²t + 1/2 × 4/3 πr3
= 1/3 πr²(3t + 2r)
e. Luas permukaan = 1/2 luas permukaan bola + luas selimut tabung + luas selimut kerucut
= 1/2 × 4πr² + 2πrt + πr √(r² + t²)
= πr(2r + 2t + √(r² + t²))
Volume = 1/2 volume bola + volume tabung + volume kerucut
= 1/2 × 4/3 πr3+ πr²t + 1/3 πr²t
= 2/3 πr² (r + 2t)