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2012 AMC 10A Problem 10

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2012 AMC 10A Problem 10AMC 10 Step by Step
Name:                             Date: September 13, 2026
Sequences & Series · difficulty 2 of 5 · about 3 min · position P1-10

Mary divides a circle into 1212 sectors. The central angles of these sectors, measured in degrees, are all integers and they form an arithmetic sequence. What is the degree measure of the smallest possible sector angle?

  1. A)

    55

  2. B)

    66

  3. C)

    88

  4. D)

    1010

  5. E)

    1212

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