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2009 AMC 10A Problem 12

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2009 AMC 10A Problem 12AMC 10 Step by Step
Name:                             Date: September 13, 2026
Triangles: Area & Pythagorean · difficulty 2 of 5 · about 2 min · position P11-15

In quadrilateral ABCDABCD , AB=5AB = 5 , BC=17BC = 17 , CD=5CD = 5 , DA=9DA = 9 , and BDBD is an integer. What is BDBD ?
figure

  1. A)

    1111

  2. B)

    1212

  3. C)

    1313

  4. D)

    1414

  5. E)

    1515

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