Respuesta :

Answer:

1. 90 degrees

2. A(7, 9) A'(-9, 7)

B(7, 1) B'(-1, 7)

C(4, 7) C'(-7, 4)

D(2, 7) D'(-7, 2)

P(x, y) P'(-y, x)

Step-by-step explanation:

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