
TRANSFORMASI GEOMETRI
Presentation
•
Mathematics
•
12th Grade
•
Easy
Wahyu Sulistyorini
Used 1+ times
FREE Resource
3 Slides • 5 Questions
1
By Wahyu Sulistyorini
Matematika Kelas XI
Semester Genap
Assesmen Diagnostik-Kognitif
Guru Mapel: Wahyu Sulistyorini, S.Pd
2
TRANSLASI (pergeseran)
Jika translasi T = (a b) memetakan titik P(x,y)
ke titik P'( x',y' ) maka berlaku rumus:
x' = x + a
y' = y + b
3
Contoh:
Titik A(5,6) ditranslasi oleh T= (2 3)
Tentukan titik hasil translasinya!
Jawab:
A' = ( x + a, y + b)
= ( 5 + 2, 6 + 3) = ( 7 , 9 )
Tentukan bayangan B(-4,2) ditranslasikan berturut-turut oleh (2 2) dan (4 1)!
Jawab:
Translasi......(2 2) + (4 1) = (6 3)
B' = ( x + a, y + b)
= ( -4+ 6, 2 + 3)
= ( 2 , 5 )
4
Multiple Choice
T = (a b) dan A(5,8) Bayangan titik A oleh translasi T adalah A'(3,4). Maka nilai a dan b adalah.......
8 dan 12
2 dan 4
-8 dan -12
-2 dan -4
11 dan 9
5
Multiple Choice
Persamaan bayangan garis y - 5x + 5 = 0 oleh translasi T = (-1 3) adalah......
y +5x - 3 = 0
y - 5x - 3 = 0
3y - x - 3 = 0
5y - 3x - 3 = 0
y - 5x + 3 = 0
6
Fill in the Blanks
Bayangan titik A (2,1) jika ditranslasi oleh T = (-1 1) adalah
Type answer...
7
Open Ended
Persamaan bayangan garis x + 3y + 2 = 0 oleh translasi T = (-1 2) adalah.......
8
Open Ended
Persegi panjang ABCD dengan A(1,1) ; B(5,1) ; C (5,6) dan D (1,6) ditranslasikan oleh (-4 3) diteruskan oleh translasi (x y) menghasilkan bayangan A'(4,8)
a. Tentukan translasi (x y)
b. Tentukan koordinat titik yang lain
By Wahyu Sulistyorini
Matematika Kelas XI
Semester Genap
Assesmen Diagnostik-Kognitif
Guru Mapel: Wahyu Sulistyorini, S.Pd
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