选择题
2026 AMC 8 Problem 11: Fibonacci Spiral Curve
Squares of side length 1, 1, 2, 3, and 5 are arranged to form the rectangle shown below. A curve is drawn by inscribing a quarter circle in each square and joining the quarter circles in order, from shortest to longest. What is the length of the curve?
2026 AMC 8 第 11 题:斐波那契螺旋曲线
将边长为 1、1、2、3、5 的正方形排列形成如下所示的矩形。通过在每个正方形中内接四分之一圆并按从最短到最长的顺序连接四分之一圆来绘制曲线。曲线的长度是多少
A.
4π
B.
6π
C.
13π/2
D.
8π
E.
10π