
TRANSFORMASI GEOMETRI
Presentation
•
Mathematics
•
12th Grade
•
Easy
Wahyu Sulistyorini
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3 Slides • 5 Questions
1
TRANSFORMASI GEOMETRI
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
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
TRANSFORMASI GEOMETRI
By Wahyu Sulistyorini
Matematika Kelas XI
Semester Genap
Assesmen Diagnostik-Kognitif
Guru Mapel: Wahyu Sulistyorini, S.Pd
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