
LUAS PERMUKAAN TABUNG - MTK 9
Presentation
•
Mathematics
•
9th Grade
•
Medium
Anggita Mumpuni
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6 Slides • 3 Questions
1
LUAS PERMUKAAN TABUNG
MATEMATIKA UNIT 2 / KELAS IX
By Anggita Mumpuni
2
TABUNG
Tabung merupakan kelompok bangun ruang sisi lengkung yang terdapat dua batas berbentuk lingkaran pada atas dan bawahnya. Kedua lingkaran tersebut berukuran sama besar serta kongruen. Kedua lingkaran tersebut disatukan oleh persegi panjang yang melengkung mengikuti sisi kedua lingkaran tersebut. Tabung terdiri dari:
- (r) = jari – jari lingkaran = 1/2 dari diameter
- (t) = tinggi tabung
3
Contoh bangun berbentuk tabung
4
Jaring - jaring tabung
Perhatikan bagian-bagiannya!
5
Luas permukan tabung
Perhatikan rumusnya!
6
Contoh soal 1
Perhatikan kalimat matematikanya!
7
Multiple Choice
Luas permukaan tabung yang mempunyai jari-jari 21 cm dan tinggi 20 cm adalah ...
1542
5124
1576
5412
8
Multiple Choice
Diameter sebuah tabung adalah 50 cm. Maka jari-jarinya adalah ...
100 cm
50 cm
25 cm
10 cm
9
Multiple Choice
tentukan luas permukaan tabung berikut ...
784
748
744
704
LUAS PERMUKAAN TABUNG
MATEMATIKA UNIT 2 / KELAS IX
By Anggita Mumpuni
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