HOMOTECIA
O
A
B
C
HOMOTECIA DIRECTA: RAZÓN POSITIVA HOMOTECIA INVERSA: RAZÓN NEGATIVA
h=OA′/OA=7/4h = OA'/OA = 7/4h=OA′/OA=7/4
h=OA′/OA=−4/3h = OA'/OA = -4/3h=OA′/OA=−4/3