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a dining table in the shape of a rectangle ABCD has sides of length 72cm and ×cm, and the length of the diagonal BD is 78cm . find

By Anna

a dining table in the shape of a rectangle ABCD has sides of length 72cm and ×cm, and the length of the diagonal BD is 78cm . find the value of ×.​

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Anna

If z1 = 3 + 2 i and z2 = 5 – 2 i , then real part of z1. z2 is

* 4 * – 19 * – 4 * 19​

Rachel bought a rug for her apartment. The rug is 12 feet long and 9 feet wide. Find the diagonal length of the rug​

1 thought on “a dining table in the shape of a rectangle ABCD has sides of length 72cm and ×cm, and the length of the diagonal BD is 78cm . find”

  1. we know that

    (2x+12)^2 + x^2 = (2x+18)^2

    expand all that and solve the quadratic, and you get

    x = 30

    check: 30^2 + 72^2 = 78^2

    That’s just 6 times a 5-12-13 triangle

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