Page 10 - E – Modul Rotasi_Nur Hafizhah Husna

Macam –macam Rotasi 01

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1. Rotasi 90 Terhadap Titik Pusat (A, B) 03

yˡ – b = x – a

yˡ = x – a + b

a – xˡ = y – b

xˡ = -y + a + b

(x, y) → (xˡ, yˡ) = (-y + a+ b, x – a + b)

(x, y) → (xˡ, yˡ) = (-y + (a + b), x – (a + b))

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