Printable

2001 AMC 10 Problem 11

Include the solution Back to the problem

2001 AMC 10 Problem 11AMC 10 Step by Step

Name: Date: September 13, 2026

Sequences & Series · difficulty 2 of 5 · about 2 min · position P11-15

Consider the dark square in an array of unit squares, part of which is shown. The first ring of squares around this center square contains $8$ unit squares. The second ring contains $16$ unit squares. If we continue this process, the number of unit squares in the $100^\text{th}$ ring is

A)
$396$
B)
$404$
C)
$800$
D)
$10, 000$
E)
$10, 404$

2001 AMC 10 Problem 11

Working