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2011 AMC 10B Problem 17

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2011 AMC 10B Problem 17AMC 10 Step by Step
Name:                             Date: September 13, 2026
Circles · difficulty 3 of 5 · about 4 min · position P16-20

In the given circle, the diameter EB‾\overline{EB} is parallel to DC‾\overline{DC} , and AB‾\overline{AB} is parallel to ED‾\overline{ED} . The angles AEBAEB and ABEABE are in the ratio 4 :54 : 5 . What is the degree measure of angle BCDBCD ?
figure

  1. A)

    120120

  2. B)

    125125

  3. C)

    130130

  4. D)

    135135

  5. E)

    140140

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