AMC 10 Step by Step
2012 AMC 10AProblem 4P1-10~2 minPrint

Let ABC=24\angle ABC = 24^\circ and ABD=20\angle ABD = 20^\circ . What is the smallest possible degree measure for angle CBDCBD ?

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Problem © Mathematical Association of America (MAA), American Mathematics Competitions. Reproduced for non-commercial educational use. Solution and commentary are original to this site.