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2021 AMC 10B Problem 20

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2021 AMC 10B Problem 20AMC 10 Step by Step
Name:                             Date: September 13, 2026
Quadrilaterals & Polygon Areas · difficulty 4 of 5 · about 6 min · position P16-20

The figure is constructed from 1111 line segments, each of which has length 22 . The area of pentagon ABCDEABCDE can be written as m+n\sqrt{m} + \sqrt{n} , where mm and nn are positive integers. What is m+n ?m + n ? figure

  1. A)

    2020

  2. B)

    2121

  3. C)

    2222

  4. D)

    2323

  5. E)

    2424

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