
Membagi Ruas Garis
Presentation
•
Mathematics
•
7th Grade
•
Practice Problem
•
Easy
+1
Standards-aligned
Azrul Tzani
Used 7+ times
FREE Resource
9 Slides • 3 Questions
1
Matematika Kelas VII
Azrul Tzani Yunus, S.Pd.
2
Sebelum Kita Memulai Materi, Mari Kita Ulangi Materi Sebelumnya Terkait Hubungan Antara 2 Garis
3
Multiple Choice
Dari Gambar Tersebut, Gambar Manakah Yang Menunjukkan Hubungan 2 Buah Garis Sejajar
1
2
3
4
4
Pernahkah Kalian Membagi Makanan Sama Besar?
5
6
Buatlah sebarang ruas garis AB
Dari titik A, buatlah ruasgaris AM dengan ukuran 5 bagian sama panjang sedemikian sehingga tidak berimpit dengan garis AB, yaitu AP = PQ = QR = RS = SM.
Hubungkan titik M dengan titik B
Buatlah garis sejajar dengan ruas garis MB yang masing-masing garis tersebut melalui titik S, R, Q, dan P sehingga memotong garis AB di titik S1, R1, Q1, dan P1
Dengan demikian, terbagilah ruas garis AB menjadi 5 bagian yang sama panjang, yaitu AP1 = P1Q1 = Q1R1 = R1S1 = S1B.
Membagi Garis Menjadi 5 Bagian
7
8
Gambar disamping menunjukkan ruas garis PQ dibagi menjadi 7 bagian yang sama panjang, sehingga
PA = AB = BC = CD = DE = EF = FQ.
Jika dari titik A, B, C, D, E, F, dan Q dibuat garis sejajar sehingga memotong pada ruas garis PR, sedemikian sehingga
PG = GH = HI = IJ = JK = KL = LR
PD : DQ = 4 : 3
PJ : JR = 4 : 3
Maka,
PD : DQ = PJ : JR
4 : 3 = 4 : 3
Contoh Perbandingan Ruas Garis
PB : BQ = 2 : 5
PH : HR = 2 : 5
Maka,
PB : BQ = PH : HR
2 : 5 = 2 : 5
9
Multiple Choice
Perbandingan ruas garis PC : CQ sama dengan perbandingan ruas garis PI : IR. Berapakah nilai perbandingannya ?
1 : 6
2 : 5
3 : 4
6 : 1
10
Multiple Choice
Ruas garis yang memiliki nilai perbandingan 5 : 2 adalah...
PB : BQ dan PH : HR
PE : EQ dan PK : KR
PD : DQ dan PJ : JR
PF : FQ dan PL : LR
11
12
Kasih
Matematika Kelas VII
Azrul Tzani Yunus, S.Pd.
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