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2009 AMC 10B Problem 9

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2009 AMC 10B Problem 9AMC 10 Step by Step
Name:                             Date: September 13, 2026
Angles & Polygons · difficulty 2 of 5 · about 3 min · position P1-10

Segment BDBD and AEAE intersect at CC , as shown, AB=BC=CD=CEAB=BC=CD=CE , and ∠A=52∠B\angle A = \frac 52 \angle B . What is the degree measure of ∠D\angle D ?

figure

  1. A)

    52.552.5

  2. B)

    5555

  3. C)

    57.557.5

  4. D)

    6060

  5. E)

    62.562.5

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