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alfers101

  • 4 years ago

Prove that the points A(0,-4) B(3,-1) C(-2,4) and D(-5,1) are vertices of a rectangle and find its perimeter.

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  1. Hero
    • 4 years ago
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    The points form a rectangle if the segments created by those points satisfy the properties of a rectangle

  2. alfers101
    • 4 years ago
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    hmm. what do u think is the formula?

  3. Hero
    • 4 years ago
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    Pythagorean Theorem

  4. Hero
    • 4 years ago
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    And P = 2l + 2w

  5. moneybird
    • 4 years ago
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    Find the slope of the line forming by two points. they must be parallel

  6. moneybird
    • 4 years ago
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    That is for the proving part.

  7. moneybird
    • 4 years ago
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    First find the equations forming by two points

  8. Hero
    • 4 years ago
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  9. Hero
    • 4 years ago
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    1. Prove that it is a parallelogram 2. Prove that the diagonals bisect each other 3. Prove that opposite sides are congruent. 3. If a figure is a parallelogram, and if its opposite sides are congruent, and if its diagonals bisect each other, then that figure must be a rectangle.

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