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2007 AMC 12B Question 11

AMC12 · 2007 AMC 12B

Question 11

The angles of quadrilateral $ABCD$ satisfy $\angle A=2\angle B=3\angle C=4\angle D.$ What is the degree measure of $\angle A,$ rounded to the nearest whole number?
  1. $125$
  2. $144$
  3. $153$
  4. $173$
  5. $180$