
TABUNG
Presentation
•
Mathematics
•
9th Grade
•
Hard
Bu Sutarni
FREE Resource
5 Slides • 3 Questions
1
SEMESTER 2
Oleh : Sutarni, S. Pd
By Bu Sutarni
2
UNSUR-UNSUR TABUNG
1. Mempunyai 3 sisi (alas, tutup, dan selimut)
2. Mempunyai 2 rusuk (lingkaran alas dan lingkaran tutup)
3. Alas dan tutup tabung berbentuk lingkaran
4. Selimut tabung berbentuk persegi panjang
5. Tidak mempunyai titik sudut.
3
RUMUS:
1. Luas selimut = 2r.t
2. Luas permukaan = 2r.(r+t)
3.Luas tabung tanpa tutup = r.(r+2.t)
4
5
Multiple Choice
Banyak sisi dan rusuk pada tabung berturut turut adalah ...
4 dan 3
4 dan 2
3 dan 3
3 dan 2
6
Multiple Choice
Sebuah tabung jari-jarinya 7 cm dan tinggi 10 cm, maka luas permukaan tabung adalah ....
440 cm2
594 cm2
748 cm2
880 cm2
7
Open Ended
Luas selimut tabung yang berjari-jari 14 cm dan tingginya 30 cm adalah….
8
Terima kasih sudah mengerjakan.
SEMESTER 2
Oleh : Sutarni, S. Pd
By Bu Sutarni
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