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画質 高画質

Problem 1267 Incircle, Excircle, Circle, Tangency Points, Perpendicular

Details: https://t.co/7j2bDCCv9S

3 3
2016-10-01

sure, I just mean something along these lines to show movement, esp. to remove the rigid geometry of the cross in the center

0 1
2016-09-24

Superman does Robin's geometry homework.
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[Superman

204 265
2016-09-19