Find the length of a diagonal of a rectangle ABCD with vertices A (-3, 1) B (-1, 3) C(3, -1) and D (1,-3)

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asked Nov 5, 2018 165k views

2 Answers

Sinan · Answer 1 · 2018-11-11T05:45:16+0000

The length of the diagonal may be determined by using the points A and C or B and D. Choosing A and C, the length of the diagonal is,
d = sqrt ((x₂ - x₁)² + (y₂ - y₁)²)
Substituting the known variables,
d = sqrt (3 - -3)² + (-1 - 1)²)
d = sqrt 40

Find the length of a diagonal of a rectangle ABCD with vertices A (-3, 1) B (-1, 3) C(3, -1) and D (1,-3)

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