

Transformasi Geometri
Presentation
•
Mathematics
•
11th Grade
•
Practice Problem
•
Medium
Hill S
Used 35+ times
FREE Resource
13 Slides • 10 Questions
1
Transformasi Geometri
MW XI

2
Rotasi, Dilatasi dan Refleksi
Menggunakan operasi perkalian matriks
3
4
Rotasi
Putar
5
6
CONTOH ROTASI
7
Multiple Choice
Suatu titik dirotasikan 90o searah jarum jam mempunyai bayangan (-3,-19) maka titik asalnya adalah .....
(19,-3)
(19,3)
(-19,3)
(-19,-3)
8
Multiple Choice
Titik A(-6,-12) dirotasikan 180o searah jarum jam, maka bayangan titik A adalah ....
(12,-6)
(-12,-6)
(6,12)
(-12,6)
9
Multiple Choice
Titik A(9,3) dirotasikan 90o berlawanan arah jarum jam, bayangan titik A adalah ......
(3,9)
(-3,9)
(-3,-9)
(3,-9)
10
Dilatasi
Skala -> Besar/kecil
11
12
13
CONTOH DILATASI
14
Multiple Choice
Perhatikan bangun trapesium ABCD di atas! Trapesium ABCD didilatasi dari pusat O menghasilkan bayangan A'B'C'D'. Jika koordinat titik A(3,9), B(6,6), C(6,3), dan D(3,3) masing-masing dilatasi menghasilkan titik koordinat A'(-1,-3), B'(-2,-2), C'(-2,-1), dan D'(-1,-1) maka faktor skala yang digunakan adalah ….
3
31
−31
−3
15
Multiple Choice
Sebuah titik P(-4, 7) didilatasikan dengan pusat O(0, 0) dan faktor skala -2. Bayangan dari titik P adalah …
(-8, -14)
(-8, 14)
(8, 14)
(8, -14)
16
Multiple Choice
Diketahui sebuah titik E(a, b) didilatasikan terhadap titik (0, 0) dan faktor skala -4 menghasilakan bayangan E’(12, -8).
Nilai a + b adalah ….
-5
-1
1
5
17
Refleksi
Pencerminan
18
19
20
Multiple Choice
Bayangan titik (-3, -2) dicerminkan terhadap garis y = x adalah ...
(-2, -3)
(-3, -2)
(2, -3)
(3, -2)
(3, 2)
21
Multiple Choice
Hasil pencerminan titik (2, 3) terhadap sumbu Y adalah ...
(3, 2)
(-2, -3)
(-2, 3)
(-3, -2)
3, -2)
22
Multiple Choice
Titik Q (-5, 2) direfleksikan terhadap garis y = -x. Bayangan titik Q adalah ...
(2, -5)
(-2, 5)
(5, -2)
(-5, -2)
23
Multiple Choice
Titik A(3,-5) dicerminkan terhadap sumbu x. Tentukan koordinat bayangan titik A.
A'(3,5).
A'(3,-5).
A'(-3,5).
A'(-3,-5).
Transformasi Geometri
MW XI

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