Respuesta :

Answer:

2

Step-by-step explanation:

given points are,

A = (4,5)

B = (3,4)

we know,

D = (x_2 - x_1)² + (y_2 - y_1)²

(3-4)² + (4-5)²

(-1)² + (-1)²

1 + 1

2

therefore, distance between A and B is 2.

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