Page 9 - Rotasi_Mifta Aqila Nasution_Neat
P. 9
Rotasi TerhadapTitikPusat(a, b)
°
– b = x – a
′
′
= x – a + b
a – = y – b
′
= -y + a + b
′
′
′
(x, y) → ( , ) = (-y + a+ b, x – a + b)
5
