A(8,-8) => T = (-2,9) => A' = (8-2 , -8+9)
A' = (6,1)
Putaran searah jarum jam = putaran -90 derajat
Putaran -90 derajat =
= (y,-x)
A'(6,1) => R(y,-x) => A'' = (1,-6)
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A(8,-8) => T = (-2,9) => A' = (8-2 , -8+9)
A' = (6,1)
Putaran searah jarum jam = putaran -90 derajat
Putaran -90 derajat =
= (y,-x)
A'(6,1) => R(y,-x) => A'' = (1,-6)