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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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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)

User Emaad Ali
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2 Answers

5 votes

The answer would be 6.3


User SuperEb
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6.3k points
3 votes
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
User Sinan
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5.9k points
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