Do you know how to divide a square into seven smaller squares?
Translate the text above into English, please keep the original text's line breaks and format, and output the translation result directly.
Track / Stage 4 / 157 of 340 #417 of 1964
Problem 417
AMC 12 late, AIME early Geometry Difficulty 4.8 Find the answer
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Official solution
Source: NuminaMath-1.5, licensed Apache-2.0. Statement and solution reproduced as published; topic, difficulty and ordering added by this site.