ROTASI
Authored by FRISKILIA MAHARANI
Mathematics
9th Grade
Used 7+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rumus rotasi sebesar 90° berlawanan arah dengan jarum jam adalah ...
(x, y) → ___
(y , -x)
(-y , x)
(x , -y)
(-x , y)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Titik (6 , 10) dirotasikan terhadap titik pusat (0,0) sebesar 90° berlawanan arah jarum jam. Bayangan titik tersebut adalah ...
(6 , -10)
(-10 , 6)
( -6 , -10)
(10 , -6)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Titik R (3 , -9) dirotasikan terhadap titik pusat (0,0) sebesar 180° berlawanan arah jarum jam. Bayangan titik tersebut adalah ...
(-3 , 9)
(3 , 9)
( -9 , 3)
(9 , -3)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Titik B(1, 3) dirotasi sejauh 270 derajat searah jarum jam terhadap titik pusat O(0, 0) . Koordinat baru titik B adalah...
(3,-1)
(-3,1)
(1,3)
(-1,3)
(-1,-3)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sebuah garis lurus dengan persamaan y = 2x + 3 dirotasi sejauh 90 derajat berlawanan arah jarum jam. Persamaan garis hasil rotasi adalah...
2x +y -3 = 0
2x - y + 3 = 0
x + 3y - 2 = 0
x +2y +3 = 0
x -2y + 4 = 0
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(0, 0)
(0, 2)
(1, 2)
( 2, 1)
(1, 1)
7.
MULTIPLE CHOICE QUESTION
1 min • 8 pts
Bayangan titik C(-3,1) yang dirotasikan sejauh - 900 dengan pusat O(0,0) adalah ….
C’(1,-3)
C’(-1,3)
C’(1,3)
C’(3,-1)
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