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Page 9
4. Limas Beraturan
Volume = 1/3 (L. Alas x t)
Luas s = n x L. sisi tegak
9. Limas Beraturan Terpancung
Volume = 1/3 h (A+√AB+B)
Luas s = n x luas sisi tegak
Ket : n = segi pd alas h= tinggi
A=luas atas B=luas bawah
5. Tabung
Volume = L. Alas x t Luas s = Kell. Alas x t
10. Tabung Terpancung
Volume = 1/8 (i1+i2)d2
Luas s = ½ (i1+i2)d
Ket : h = tinggi rata2 = ½ (i1+i2)
6. Kerucut
Volume = 1/3(L. Alas x t ) Luas s = rs
7. Kerucut Terpancung
Volume = 1/3t(r2+rR+r2) Luas s = a(R+r)
Ket : a = panjang grs miring r = jari2 kecil
R = jari2 besar t = tinggi
Page 8
VOLUME
1. Kubus
Volume = s3 Luas Selimut = 4s2
7. Bola
Volume = 4/3 (r3) Luas s = 4r2
2. Balok
Volume = p.l.t Luas Selimut = 2 (pt+lt)
3. Prisma Tegak Beraturan
Volume = L. Alas x t Luas s = Kll. Alas x t
8. Prisma Tegak Beraturan Terpancung
Volume = 1/n (l1+l2+....ln). L alas
Luas s = 1/n (l1+l2+....ln). Kll. Alas
Ket : n = segi n l = rusuk tegak
Page 7
Luas Daerah Bidang Beraturan
1. Rumus Pythagoras
c2 = a2+ b2
6. Belah Ketupat
Luas = ½ (d1 x d2)
d = diagonal
2. Segi Tiga
Luas = ½ ( a x t )
t = tinggi
a = alas
L = 1/2 x a x b x
7. Layang-layang
Luas = ½ (d1 x d2)
d = diagonal
3. Bujur Sangkar (Persegi)
Luas = s x s
s = sisi
8. Jajaran Genjang
Luas = a x t
a = alas
t = tinggi
4. Persegi Panjang
Luas = p x l
p = Panjang
l = lebar
9. Lingkaran
Luas = r2
= ¼ d2
r = Jari-jari
d = diameter ( 2r )
5. Trapesium
Luas = ½ (a + b) t
t = tinggi
a = sejajar b
10. Segi n Beratuan
L = ¼ ( n.s2.Tg )
n = banyak segi
s = panjang sisi
= 360 /n
Filename: RUMUS MATEMATIKA Directory: C:\Users\wiranto\Documents Template:
C:\Users\wiranto\AppData\Roaming\Microsoft\Templates\Normal.dotm
Title: Bab Subject: Author: wiranto Keywords: Comments: Creation Date: 11/12/2010 10:39:00 Change Number: 18 Last Saved On: 09/10/2011 12:09:00 Last Saved By: wiranto Total Editing Time: 506 Minutes Last Printed On: 09/10/2011 12:40:00 As of Last Complete Printing Number of Pages: 9 (approx.) Number of Words: 1.012 (approx.) Number of Characters: 5.773 (approx.)