
Phytagoras
Presentation
•
Mathematics
•
12th Grade
•
Practice Problem
•
Easy
Gatot Sugiharto
Used 11+ times
FREE Resource
7 Slides • 3 Questions
1
By Gatot Sugiharto
2
Poll
HALO ANAK MANIS , APA KABAR HARI INI ?
PILIH GAMBAR DIBAWAH UNTUK MENUNJUKKAN KEADAAN KAMU HARI INI
3
By Gatot Sugiharto
Pythagoras adalah seorang matematikawan asal Yunani yang dikenal dengan teoremanya yaitu teorema Pythagoras.
Teorema pythagoras atau dalil pythagoras mengatakan bahwa sisi miring atau sisi terpanjang dalam segitiga siku – siku sama dengan jumlah kuadrat sisi – sisi lainnya.
4
By Gatot Sugiharto
a2 + b2 = c2
Dari rumus tersebut diperoleh :
1. c = √ a2 + b2
2. b = √ c2 - a2
3. a = √ c2 - b2
5
By Gatot Sugiharto
Contoh Soal :
Diketahui :
BC = 3 cm
AC = 4 cm
Ditanya : Panjang AB ?
Jawab :
AB2 = BC2 + AC2
AB2 = 32 + 42
AB2 = 9 + 16
AB2 = 25
AB =√25
AB = 5 Jadi Sisi Miringnya adalah 5 cm.
6
By Gatot Sugiharto
Kuadrat sisi miring = jumlah kwadrat sisi-sisi yang lainnya
7
Multiple Choice
Perhatikan gambar disamping.
1. c2 = b2 - a2
2. c2 = a2 - b2
3. b2 = a2 + c2
4. a2 = b2 + c2
Dari pernyataan diatas, yang benar adalah :
1 dan 3
2 dan 4
2 dan 3
3 dan 4
8
Multiple Choice
Panjang sisi AB pada segitiga disamping adalah :
4 cm
5 cm
6 cm
7 cm
9
By Gatot Sugiharto
10
By Gatot Sugiharto
By Gatot Sugiharto
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