Rumus math kelas 9 materi Tabung
Luas selimut
L = π × r² + π × r² + 2 × π × r × t
L = 2 × π × r² + 2 × π × r × t
L = 2 π r (r + t)
Keterangan :
Volume Tabung
V = Volume tabung
π = phi (22/7 atau 3,14)
r = jari – jari alas atau atap
t = tinggi tabung
Luas Permukaan Tabung Tanpa Tutup
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Rumus math kelas 9 materi Tabung
Luas selimut
L = π × r² + π × r² + 2 × π × r × t
L = 2 × π × r² + 2 × π × r × t
L = 2 π r (r + t)
Keterangan :
Volume Tabung
Keterangan :
V = Volume tabung
π = phi (22/7 atau 3,14)
r = jari – jari alas atau atap
t = tinggi tabung
Luas Permukaan Tabung Tanpa Tutup