Track / Stage 4 / 109 of 340 #369 of 2000

33. (5 points)
In the rectangle $P O Q R$, 3 identical squares are embedded. Given that $P R=8$ cm, $R Q=10$ cm, the area of each square is $\qquad$ square cm.

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Source: NuminaMath-1.5, licensed Apache-2.0. Statement and solution reproduced as published; topic, difficulty and ordering added by this site.