Bayangan titik P ( a , b ) oleh rotasi terhadap titik pusat ( 0 , 0 ) sebesar − 90∘ adalah P ′ ( − 10 , − 2 ) . Nilai a + 2 b = ⋯ ⋅
matematika

Quiz
•
Mathematics
•
11th Grade
•
Hard
Yudi Setyono
Used 20+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
− 18
− 8
8
18
22
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2. Bayangan titik A dengan A ( − 1 , 4 ) jika direfleksikan terhadap garis y = − x adalah ⋯ ⋅
A ′ ( 4 , 1 )
A ′ ( − 4 , 1 )
A ′ ( 4 , − 1 )
A ′ ( 4 , 3 )
A ′ ( − 4 , − 1 )
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Titik B ( 3 , − 2 ) dirotasikan sebesar 90 ∘ terhadap titik pusat P ( − 1 , 1 ) . Bayangan titik B adalah ⋯ ⋅
B ′ ( − 4 , 3 )
B ′ ( − 2 , 1 )
B ′ ( − 1 , 2 )
B ′ ( 1 , 4 )
B ′ ( 2 , 5 )
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Bayangan titik P ( 2 , − 3 ) oleh rotasi R [ O , 90∘ ] adalah ⋯ ⋅
P ′ ( 3 , 2 )
P ′ ( 2 , 3 )
P ′ ( − 2 , 3 )
P ′ ( − 3 , 2 )
P ′ ( − 3 , − 2 )
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui koordinat titik P ( − 8 , 12 ) . Dilatasi [ P , 1 ] memetakan titik ( − 4 , 8 ) ke titik ⋯ ⋅
( − 4 , 8 )
( − 4 , 16 )
( − 4 , − 8 )
( 4 , − 16 )
( 4 , − 8 )
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Segitiga K L M dengan K ( 6 , 4 ) , L ( − 3 , 1 ) , M ( 2 , − 2 ) didilatasi dengan pusat ( − 2 , 3 ) dan faktor skala 4. Koordinat bayangan △ K L M adalah ⋯ ⋅
K ′ ( 30 , 7 ) , L ′ ( − 6 , − 5 ) , M ′ ( 14 , − 17 )
K ′ ( 30 , 7 ) , L ′ ( − 6 , − 5 ) , M ′ ( 10 , − 12 )
K ′ ( 30 , 7 ) , L ′ ( − 3 , − 7 ) , M ′ ( 14 , − 17 )
K ′ ( 7 , 24 ) , L ′ ( − 5 , − 6 ) , M ′ ( 14 , 8 )
K ′ ( 7 , 24 ) , L ′ ( − 6 , − 5 ) , M ′ ( 7 , 30 )
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Segitiga ABC dengan titik A ( − 2 , 3 ) , B ( 2 , 3 ) , dan C ( 0 , − 4 ) didilatasi dengan pusat O ( 0 , 0 ) dan faktor skala 4 . Luas segitiga setelah didilatasi adalah ⋯ ⋅
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