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2003 AMC 10B Problem 23

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2003 AMC 10B Problem 23AMC 10 Step by Step
Name:                             Date: September 13, 2026
Quadrilaterals & Polygon Areas · difficulty 4 of 5 · about 4 min · position P21-25

A regular octagon ABCDEFGHABCDEFGH has an area of one square unit. What is the area of the rectangle ABEFABEF ?

figure

  1. A)

    1−221-\frac{\sqrt2}{2}

  2. B)

    24\frac{\sqrt2}{4}

  3. C)

    2−1\sqrt2-1

  4. D)

    12\frac{1}2

  5. E)

    1+24\frac{1+\sqrt2}{4}

Working