BANGUN RUANG SISI LENGKUNG
Presentation
•
Mathematics
•
9th Grade
•
Hard
EVA YANNIE
Used 2+ times
FREE Resource
7 Slides • 3 Questions
1
By EVA YANNIE ,S.Pd
Untuk Kelas 9 SMP
2
Poll
Apa kabar semuanya hari ini ?
Alhamdulillah sehat
Sehat namun sedikit sakit
Baru sembuh
3
Pembahasan
Bola adalah bangun ruang sisi lengkung yang di bentuk dari tak hingga lingkaran yang memiliki jari-jari sama panjang dan berpusat pada titik yang sama.
4
Luas Permukaan Bola
5
Volume Bola
6
Kesimpulan
Rumus Luas Permukaan Bola = 4 x π x r2 atau
= π x d2
Rumus Volume Bola = 4/3 x π x r3 atau
= 1/6 x π x d3
Keterangan:
π = 22/7 atau 3,14
r = jari-jari lingkaran
d = diameter lingkaran
7
Multiple Choice
Luas permukaan bola yang berdiameter 21 cm dengan π = 22/7 adalah......
264 cm2
462 cm2
386 cm2
4.851 cm2
8
Multiple Choice
Jika volume bola 2.304 π cm3 , maka jari-jari bola tersebut adalah......
12 cm
14 cm
16 cm
20 cm
9
NAMA : EVA YANNIE ,S.Pd
INSTANSI : SMP NEGERI 2 BANGKO
BAGANSIAPIAPI - ROHIL
RIAU
10
TERIMA KASIH
By EVA YANNIE ,S.Pd
Untuk Kelas 9 SMP
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