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sertanlavr [38]
3 years ago
12

What is the length of side AB? Round your answer to the nearest tenth.

Mathematics
1 answer:
ELEN [110]3 years ago
3 0

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 = \sqrt{(3-1)^2+(3-1)^2}

     = \sqrt{2^2+2^2}

     = \sqrt{4+4}

     = \sqrt{8} ≈ 2.8 units ( to the nearest tenth )

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