Tentukan bayangan persegi panjang ABCD dengan A(2,3), B(8,3), C(8,6), dan D(2,6), jika dilakukan transformasi dilatasi pusat O dan skala 2 adalah… .

tentukan bayangan persegi panjang ABCD dengan A(2,3), B(8,3), C(8,6), dan D(2,6), jika dilakukan transformasi dilatasi pusat O dan skala 2 adalah… .
a.A'(4,6), B'(16,6), C'(16,6), D'(4,12)
b.A'(4,6), B'(16,6), C'(16,12), D'(4,12)
c.A'(4,3), B'(16,6), C'(16,12), D'(4,12)
d.A'(4,6), B'(16,6), C'(12,16), D'(4,12)

jawaban untuk pertanyaan diatas adalah b.A'(4,6), B'(16,6), C'(16,12), D'(4,12)

Konsep
A(x, y) jika dilakukan transformasi dilatasi pusat O dan skala k bayangannya A'(x’, y’) dimana
x’ = kx
y’ = ky

A(2,3) jika dilakukan transformasi dilatasi pusat O dan skala 2 bayangannya
A'(2.2, 2.3)
A’ (4,6)

B(8,3) jika dilakukan transformasi dilatasi pusat O dan skala 2 bayangannya
B’ = (2.8, 2.3)
B’ = (16,6)

C(8,6) jika dilakukan transformasi dilatasi pusat O dan skala 2 bayangannya
C’ = (2. 8, 2.6)
C’ = (16,12)

D(2,6)jika dilakukan transformasi dilatasi pusat O dan skala 2 bayangannya
D’= (2.2, 2.6)
D’ = (4,12)

Jadi jawabnya adalah b.A'(4,6), B'(16,6), C'(16,12), D'(4,12)

Rekomendasi lainnya :

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