
Bangun Ruang Sisi Lengkung Bagian 3
Presentation
•
Mathematics
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9th Grade
•
Practice Problem
•
Hard
Suryani Suryani
Used 1+ times
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6 Slides • 5 Questions
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By Suryani Suryani
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Matematika IX SMP
Kelas : IX
Semester : Genap
Nama : Suryani, S.Pd
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Bola adalah bangun ruang sisi lengkung yang dibentuk dari tak hingga lingkaran yang memiliki jari-jari sama panjang dan berpusat pada titik yang sama. Bola hanya memiliki satu sisi yang merupakan sisi lengkung. Benda dalam kehidupan sehari-hari yang berbentuk bola adalah bola olah raga (sepak bola, basket, voli, dan lain-lain), globe, kelereng, dan lainnya.
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Luas permukaan bola = 4 x Luas Lingkaran
Luas permukaan bola = 4 x π r2
Luas permukaan bola = 4πr2
Rumus Luas Permukaan Bola.
Luas Permukaan Bola
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Rumus Volume Bola
Volume Bola
Volume Bola = 4 x volume kerucut dengan tinggi kerucut = jari-jari bola
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Volume Bola
Volume Bola = 4 x ⅓ x π x r2 x t
Volume Bola = 4 x ⅓ x π x r3
Volume Bola = 4 x ⅓ x πr3
Rumus Volume Bola
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Multiple Choice
Luas permukaan bola dengan diameter bola 14 cm dalah......cm2.
2.464
616
392
157
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Multiple Choice
Volume bola dengan jari-jari bola 9 cm adalah........cm3..
108 π
324 π
729 π
972 π
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Open Ended
Diketahui luas permukaan bola 36 cm2, tentukan :
a. Jari-jari bola!
b. Volume bola!
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Fill in the Blanks
Tuliskan rumus luas permukaan bola!
Type answer...
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Open Ended
Volume sebuah bola 288 π cm3. Tentukan :
a. Jari-jari bola!
b. Luas permukaan bola!
By Suryani Suryani
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