Kunci Jawaban Matematika Kelas 9 Halaman 303,304,305 Latihan 5.3 Esai No 1-5 Semester 2

= ¹/₂ × 12 dm r

= 6 dm

Hitung luas permukaan bola (L)

 L = 4πr²

= 4 × 3,14 × (6 dm)²

= 4 × 3,14 × 36 dm²

= 452,16 dm²

Hitung Volume bola (V)

V = ⁴/₃ πr³

= ⁴/₃ × 3,14 × (6 dm)³