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2001 AMC 10 Problem 5

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2001 AMC 10 Problem 5AMC 10 Step by Step
Name:                             Date: September 13, 2026
Transformations & Symmetry · difficulty 2 of 5 · about 2 min · position P1-10

How many of the twelve pentominoes pictured below have at least one line of reflectional symmetry?

figure

  1. A)

    33

  2. B)

    44

  3. C)

    55

  4. D)

    66

  5. E)

    77

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