

TRANSFORMASI
Presentation
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Eva Indah
FREE Resource
12 Slides • 0 Questions
1
TRANSFORMASI
KELAS IX
OLEH : Eva Indah, S.Pd., Gr.
apersepsi
Motivasi
Skema
Ayo Amati
LKPD
Kesimpulan
2
ةَّيِبَرَعلا ةَغُّللااَهُّبِحأ
ِّ سَعُت َلاَو ْرِّ سَي ِّ بَر ْيَخْلاِّب ْمِّ مَتَو ْر ِّر
ُزْرَو اًمْلِّع ْيِّنْدِّز يِّ بَر َمَعَو اًمْهَف ْيِّنْق ًل
ًلَّبَقَتُم
DOA BELAJAR
3
apersepsi
Motivasi
Ayo Amati
LKPD
Sudah Siapkah Belajar hari
ini ?
Skema
Kesimpulan
4
apersepsi
Motivasi
Ayo Amati
LKPD
Masih Ingatkah!
Mari kita jawab pertanyaan berikut :
1. Bagaimana jika suatu benda di rotasikan terhadap titik
pusat sebesar 𝛼° searah jarum jam?
Skema
Kesimpulan
TUGAS
JKL adalah sebuah segitiga dengan J(3, 3), K(8, 3), L(8, 6)
dirotasinkan terhadap titik pusat searah jarum jam sebesar
270o. Gambarlah benda dan bayangan dari benda tersebut!
5
TUGAS
JKL adalah sebuah segitiga dengan J(3, 3), K(8, 3), L(8, 6)
dirotasinkan terhadap titik pusat searah jarum jam sebesar
270o. Gambarlah benda dan bayangan dari benda tersebut!
6
apersepsi
Motivasi
Ayo Amati
LKPD
Tujuan Pembelajaran
1. Menggambar bayangan hasil Refleksi
Skema
Kesimpulan
7
Motivasi
LKPD
AYO PERHATIKAN SLIDE
SELANJUTNYA
apersepsi
Ayo Amati
Kesimpulan
𝑹𝒆𝒇𝒍𝒆𝒌𝒔𝒊
A
Refleksi terhadap
A’
(x, y)
𝑠𝑢𝑚𝑏𝑢 𝑥
(x, -y)
𝑠𝑢𝑚𝑏𝑢 𝑦
(-x, y)
𝑡𝑖𝑡𝑖𝑘 𝑝𝑢𝑠𝑎𝑡 (0,0)
(-x, -y)
𝑔𝑎𝑟𝑖𝑠 𝑦 = 𝑥
(y, x)
𝑔𝑎𝑟𝑖𝑠 𝑦 = −𝑥
(-y,-x)
𝑔𝑎𝑟𝑖𝑠 𝑥 = 𝑘
(2k-x, y)
𝑔𝑎𝑟𝑖𝑠 𝑦 = 𝑘
(x, 2k-y)
8
apersepsi
Motivasi
Skema
Dalam Kehidupan Sehari hari
Refleksi
terhadap
A’
𝑠𝑢𝑚𝑏𝑢 𝑥
(x, -y)
𝑠𝑢𝑚𝑏𝑢 𝑦
(-x, y)
𝑡𝑖𝑡𝑖𝑘 𝑝𝑢𝑠𝑎𝑡 (0,0)
(-x, -y)
𝑔𝑎𝑟𝑖𝑠 𝑦 = 𝑥
(x, y)
𝑔𝑎𝑟𝑖𝑠 𝑦 = −𝑥
(-x,-y)
𝑔𝑎𝑟𝑖𝑠 𝑥 = 𝑘
(2k-x, y)
𝑔𝑎𝑟𝑖𝑠 𝑦 = 𝑘
(x, 2k-y)
𝑔𝑎𝑟𝑖𝑠 𝑃 (𝑎, 𝑏)
(2a-x, 2b-y)
9
Ayo kita amati !
A
Refleksi
terhadap
A’
(x, y)
𝑠𝑢𝑚𝑏𝑢 𝑥
(x, -y)
𝑠𝑢𝑚𝑏𝑢 𝑦
(-x, y)
𝑡𝑖𝑡𝑖𝑘 𝑝𝑢𝑠𝑎𝑡 (0,0)
(-x, -y)
𝑔𝑎𝑟𝑖𝑠 𝑦 = 𝑥
(x, y)
𝑔𝑎𝑟𝑖𝑠 𝑦 = −𝑥
(-x,-y)
𝑔𝑎𝑟𝑖𝑠 𝑥 = 𝑘
(2k-x, y)
𝑔𝑎𝑟𝑖𝑠 𝑦 = 𝑘
(x, 2k-y)
10
11
Motivasi
LKPD
AYO PERHATIKAN SLIDE
SELANJUTNYA
apersepsi
Skema
Ayo Amati
Kesimpulan
Kesimpulan
12
Motivasi
LKPD
AYO BERLATIH :
apersepsi
Skema
Kesimpulan
Ayo Amati
ABC adalah sebuah segitiga dengan
A(2,4), B(5,8) dan C(9,4) dirotasikan
terhadap titik pusat sebesar 90° searah
jarum jam dan dilanjutkan dengan
refleksi terhadap sumbu y = x .
Gambarlah benda dan bayangan yang
dihasilkan!
TRANSFORMASI
KELAS IX
OLEH : Eva Indah, S.Pd., Gr.
apersepsi
Motivasi
Skema
Ayo Amati
LKPD
Kesimpulan
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