AMC 8 2026 Problem 23

AMC8 2026 年第 23 题

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Lakshmi has 5 round coins of diameter 4 centimeters. She arranges the coins in 2 rows on a table top, as shown below, and wraps an elastic band tightly around them. In centimeters, what will be the length of the band?

有 5 枚直径为 4 厘米的圆形硬币。她将这些硬币按如下方式在桌面上排成两行，并用一根橡皮筋紧紧围住它们。橡皮筋的长度是多少厘米？

AMC 8 2026 Problem 23 figure

A. $2\pi + 20$
B. $\displaystyle (\frac{5}{2})\pi + 20$
C. $4\pi + 20$
D. $\displaystyle (\frac{9}{2})\pi + 20$
E. $5\pi + 20$

正确答案 · Correct Answer

C

解析 · Solution

解析整理中

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