MATEMATIKA “Segi Empat”
Disusun Oleh : Nama
: M .RIZAL
Kelas
: VII - 7
No. Abs
: 22
KEMENTRIAN AGAMA REPUBLIK INDONESIA MTS NEGERI EMPANG TAHUN DIKLAT 2015-2016
BANGUN DATAR (SEGI EMPAT PENGERTIAN SEGI EMPAT
Segi empat me!pa"a# $agia# %a#g &e'e#i& (ai pe&egi pa#'a#g ata)p!# pe&egi %a#g &ei#g (i&e$!t '!ga 'a'a ge#'a#g &e*ai# $a#g!# +$a#g!# it! ma&i, a(a $e$eapa 'e#i& $a#g!# &egi empat %a#g &ei#g "ita tem!"a# (i &e"ita "ita $ai" %a#g $e$e#t!" &e(e,a#a ma!p!# %a#g "mp*e"&. Bei"!t a(a*a, ma/am-ma/am $a#g!# &egi empat %a#g &!(a, (i"e#a* !m!m (a# m!#g"i# &!(a, (ipe*a'ai (i &e"*a, $e&eta !m!& + !m!& (a# &iat#%a&e$agai $ei"!t Pa(a matei i#i a"a# (i!ai"a# te#ta#g $a#g!# (ata ",!&!&#%a !#t!" $a#g!# (ata &egi empat. A(ap!# $a#g!# (ata &egi empat te(ii (ai pe&egi pa#'a#g pegi 'a'age#'a#g $e*a, "et!pat *a%a#g-*a%a#g (a# tape&i!m. !.
PERSEGI PAN"ANG
Siat-&iat (ai pe&egi pa#'a#g 13
Si&i %a#g $e,a(apa# &ama pa#'a#g (a# &e'a'a.
23
Keempat &!(!t#%a &ama $e&a (a# me!pa"a# &!(!t &i"!-&i"! 40 03.
3
Ke(!a (iag#a*#%a &ama pa#'a#g (a# $ept#ga# mem$agi (!a &ama $e&a.
73
Dapat me#empati $i#g"ai#%a "em$a*i (e#ga# empat /aa.
Dai &iat-&iat (i ata& (apat (i&imp!*"a# Persegi panjang a(a*a, &egi empat %a#g
$e,a(apa# &ama pa#'a#g (a# &e'a'a.
R!m!&
"eempat &!(!t#%a &i"!-&i"! (a# &i&i-&i&i %a#g
13
Ke*i*i#g 4K3 8 2 4pa#'ag9*e$a3
8 2 4AB9BD3 23
L!a& 4L3
8 Pa#'a#g : *e$a
;#t, Sa* Pe&egi Pa#'a#g S!at! pe&egi pa#'a#g memp!#%ai pa#'a#g 8 < /m (a# *e$a 8 5 /m Beapa L!a& (a# "e*i*i#g pe&egi pa#'a#g it! = >a)a$ L!a&
•
8 p: *
8 < /m : 5 /m 8 70 cm2 Ke*i*i#g
•
8 2 4p9*3
8 2 4 a)a$ •
L!a&
8p:*
*
8 L!a& @ p
*
8 ?0 /m2 @ 10 /m
*
8 ? /m •
Ke*i*i#g
8 2 : 1? /m 8 7 /m 2.
PERSEGI
8 2 410/m9?/m3
Siat-&iat (ai pe&egi 13
Sem!a &iat pe&egipa#'a#g me!pa"a# &iat pe&egi.
23
S!at! pe&egi (apat me#empati $i#g"ai#%a (e#ga# (e*apa# /aa.
3
Sem!a &i&i pe&egi a(a*a, &ama pa#'a#g.
73
S!(!t-&!(!t &!at! pe&egi (i$agi (!a &ama $e&a *e, (iag#a*-(iag#a*#%a.
53 Diag#a*-(iag#a* pe&egi &a*i#g $ept#ga# &ama pa#'a#g mem$e#t!" &!(!t &i"!&i"!. >a(i pengertian persegi a(a*a, &egiempat %a#g "eempat &i&i#%a &ama pa#'a#g (a# "eempat &!(!t#%a &ama $e&a %ait! 0 0. R!m!& pe&egi 13
Ke*i*i#g 4K3 8 7 : &i&i ata! K 8 7&
23
L!a& 4L3 8 &i&i : &i&i ata! S2.
;#t, Sa* Pe&egi Beapa *!a& (a# "e*i*i#g $!'! &a#g"a %a#g memp!#%ai pa#'a#g &i&i 5 /m = 'a)a$ •
L!a&
8 &i&i : &i&i # 5 /m : 5 /m
8 25 cm2 4&at!a# *!a& a(a*a, pe&egi3 •
Ke*i*i#g
8 7 : &i&i
8 7 : 5 /m 8 20 /m >i"a *!a& &!at! $!'! &a#g"a a(a*a, 6 cm2 $eapa pa#'a#g &i&i (a# "e*i*i#g $!'! &a#g"a te&e$!t = >a)a$ •
mi&a* &i&i a(a*a, &
L!a& 8 &i&i : &i&i 8 & : & 8 & 2
L!a& 8 6 /m 2 S2
8 6 /m2
S
8 6 /m2
S
8 6 /m
•
Ke*i*i#g
Pa#'a#g &i&i
8 7 : &i&i
8 7 : 6/m 8 27 /m >i"a "e*i*i#g $!'! &a#g"a a(a*a, 7< /m $eapa pa#'a#g &i&i (a# L!a& $!'! &a#g"a t&$ = >a)a$ : $.
"A"AR GEN"ANG
Siat-&iat 'a'a ge#'a#g 13
Si&i-&i&i %a#g $e,a(apa# pa(a &etiap 'a'age#'a#g &ama pa#'a#g (a# &e'a'a.
23
S!(!t-&!(!t %a#g $e,a(apa# pa(a &etiap 'a'age#'a#g &ama $e&a.
3
>!m*a, pa&a#ga# &!(!t %a#g &a*i#g $e(e"ata# pa(a &etiap 'a'age#'a#g a(a*a, 1<0 0.
73
Pa(a &etiap 'a'age#'a#g "e(!a (iag#a*#%a &a*i#g mem$agi (!a &ama pa#'a#g.
Dei#i&i jajargenjang a(a*a, &egiempat (e#ga# &i&i-&i&i %a#g $e,a(apa# &e'a'a (a# &ama pa#'a#g &eta &!(!t-&!(!t %a#g $e,a(apa# &ama $e&a. R!m!& 'a'age#'a#g 13
Ke*i*i#g 4K3 8 '!m*a, &i&i#%a 8 AB 9 B; 9 ;D 9 DA
23
L!a& 4L3 8 a*a& : ti#ggi
;#t, Sa* >a'a Ge#'a#g S!at! 'a'aa# ge#'a#g memp!#%ai pa#'a#g8 ? /m (a# *e$a8 5 /m (a# ti#ggi 8 7 /m. Beapa "e*i*i#g (a# *!a& 'a'aa# ge#'a#g t&$= >a)a$ •
Ke*i*i#g
8?959?95
8 27 /m •
L!a&
8 a*a& : ti#ggi
8 ? /m : 7 /m 8 2< /m2 %.
BELA& KETUPAT
Siat-&iat $e*a, "et!pat 13
Sem!a &i&i pa(a $e*a, "et!pat &ama pa#'a#g.
23
Ke(!a (iag#a* pa(a $e*a, "et!pat me!pa"a# &!m$! &imeti.
3 Ke(!a (iag#a* $e*a, "et!pat &a*i#g mem$agi (!a &ama pa#'a#g (a# &a*i#g $ept#ga# tega" *!!&.
73 Pa(a &etiap $e*a, "et!pat &!(!t-&!(!t %a#g $e,a(apa# &ama $e&a (a# (i$agi (!a &ama $e&a *e, (iag#a*-(iag#a#% 53
a.
Pe#getia# belah ketupat a(a*a, &egiempat %a#g "eempat &i&#%a &ama pa#'a#g. R!m!& $e*a, "et!pat 13
Ke*i*ig 4K3 8 AB 9 B; 9 ;D 9 DA
23
L!a& 4L3 8 1@24(1 : (23
;#t, Sa* Be*a, Ket!pat Pa#'a#g &i&i $e*a, "et!pat 8 5 /m $eapa"a, "e*i*i#g#%a = >a)a$ •
Ke*i*i#g
8 7 : &i&i
8 7 : 5 /m 8 20 /m 8 21 /m2
'.
LAANG-LAANG
1. Siat-&iat *a%a#g-*a%a#g 13
Sepa&a#g &i&i#%a &ama pa#'a#g.
23
Sepa&a#g &!(!t %a#g $e,a(apa# &ama $e&a.
3
Saa, &at! (iag#a*#%a me!pa"a# &!m$! &imeti.
73 Sa*a, &at! (iag#a* *a%a#g-*a%a#g mem$agi (iag#a* *ai##%a me#'(i (!a $agia# &ama pa#'a#g (a# "e(!a (iag#a* it! &a*i#g tega" *!!&. Pe#getia# bangun layang-layang a(a*a, &egiempat (e#ga# (!a pa&a#g &i&i-&i&i %a#g $e(e"ata# &ama pa#'a#g. R!m!& *a%a#g-*a%a#g 13
Ke*i*i#g 4K3 8 '!m*a, &i&i-&i&i#%a 8 AB 9 B; 9 ;D 9 DA
23
L!a& 4L3 8 4(1 : (23
;#t, Sa* La%a#g-La%a#g Pa#'a#g &!at! (iag#a* *a%a#g-*a%a#g a(a*a, 15 /m (e#ga# *!a& 75 /m 2. Beapa"a, pa#'a#g (iag#a* *a%a#g-*a%a#g %a#g &at!#%a = >a)a$ L
8 : (iag#a* 1 : (iag#a* 2
75 /m2
8 : 15 /m : (iag#a* 2
(iag#a* 2
8 2 : 75 /m 2 @ 15 /m
(iag#a* 2
8 6 /m
La%a#g-*a%a#g AB;D titi" p!&at (i O AO86 /m O;8 /m DO87 /m. ,it!#g*a, a. L!a& *a%a#g-*a%a#g $. Ke*i*i#g*a%a#g-*a%a#g >a)a$ a. A; 8 O;9AO 8 6 /m9 /m 8 /m $. DO 8 BO
DB 8 DO9BO
8 7 /m97 /m 8 < /m •
L!a& 8 1@2 : (1 : (2
8 1@2 : A; : DB 8 1@2 : : 7 8 1< /m2
).
TRAPESIUM
Siat-&iat tape&i!m 13
Sepa&a#g &i&i %a#g $e,a(apa# &e'a'a.
23 S!(!t a#taa &i&i-&i&i &e'a'a %a#g memi*i"i "a"i &e"!t! &a*a, &at! &i&i tega"#%a $e'!m*a, 1<00. 3
Diag#a*-(iag#a* tape&i!m &ama "a"i a(a*a, &ama pa#'a#g.
>a(i pe#getia# trapesium a(a*a, $a#g!# (ata &egiempat %a#g tepat memp!#%ai &epa&a#g &i&i %ag &e'a'a. R!m!& tape&i!m 13
Ke*i*i#g 4K3
8 '!m*a, &i&i-&i&i#%a 8 AB 9 B; 9 ;D 9 DA
23
L!a& 4L3
8 4'!m*a, &i&i &e'a'a : ti#ggi3
;#t, Sa* Tape&i!m Beapa *!a& (a# "e*i*i#g tape&i!m 'i"a pa#'a#g AB817/m B;86/m ;D8a)a$ •
L!a&
8 4AB 9 ;D3 : t @ 2
8 417 /m 9 < /m3 : ?/m @ 2 8 ?? /m2 •
Ke*i*#g
8 417 9 6 9 < 9 53 /m 8 /m
8 AB 9 B; 9 ;D 9 AD
