Let on side BC of square ABCD set point E, BE:EC=1:2. On side DC point F(adsbygoogle = window.adsbygoogle || []).push({});

(D-C-F), CF:DF=1:3.

Prove that point M = intersection AE and BF, is on circle about ABCD.

Please help.

Thnx

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# Point on circle about square

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