Perhatikan gambar berikut. Volume tabung diluar bola adalah... (π=3.14)

<p>Jawaban : 785 cm³</p><p>&nbsp;</p><p>Ingat:</p><p>Volume bola = 4/3 × 𝞹 × r³</p><p>Volume tabung = 𝞹 × r² × t</p><p>dengan:</p><p>r : jari-jari</p><p>t = tinggi tabung</p><p>𝞹 = 22/7 atau 3,14</p><p>&nbsp;</p><p>Pembahasan:</p><p>Diameter lingkaran = 30/3 = 10 cm</p><p>Jari-jari lingkaran = 10/2 = 5 cm</p><p>Volume 3 bola = 3 × 4/3 × 𝞹 × r³</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 4 × 3,14 × 5³</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 4 × 3,14 × 125</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 1570 cm³</p><p>&nbsp;</p><p>Jari-jari tabung = jari-jari bola = 5 cm</p><p>Tinggi tabung = 30 cm</p><p>Volume tabung = 𝞹 × r² × t</p><p>= 3,14 × 5² × 30</p><p>= 3,14 × 25 × 30</p><p>= 2355 cm³</p><p>&nbsp;</p><p>Volume tabung di luar bola = 2355 cm³ - 1570 cm³ = 785 cm³</p><p>&nbsp;</p><p>Jadi, volume tabung di luar bola adalah 785 cm³</p>