Senin, 19 April 2010

Rumus-Rumus Bangun Ruang

Tabung
v = π r2 t
v = ¼ π d2 t
L.P = 2 π r (r+t)
L.S = 2 π r t
Bola
v = 4/3 π r3
v = 1/6 π d3
L.P = 4 π r2
Kubus
v = s3
L.P = 6 s2
Diagonal bidang = s 2
Diagonal Ruang = s √3
Prisma
v = L.at
L.P = 2 L.a + (keliling alas. t)
Diagonal : a2 + b2 = c2
Limas
v = ⅓ L.at
L.P = L.a + jumlah luas sisi tegak
Diagonal : a2 + b2 = c2
Kerucut
v = 1/3 π r2 t
v = 1/12 π d2 t
L.P = π r (r+s)
L.S = π r s
s2 = t2 + r2
Balok
v = p . l . t
L.P = 2(p.l) + 2(p.t) + 2(l.t)
Diagonal : a2 + b2 = c2

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