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Answer:
AB ≈ 2.8 units
Step-by-step explanation:
Calculate the length using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = A(1, 1) and (x₂, y₂ ) = B(3, 3)
AB =
=
=
= ≈ 2.8 units ( to the nearest tenth )