Question: Right-angled triangle ABC contains square DBEF which has D on AB, E on BC, and F on CA. Given that AB = 21 and BC

Right-angled triangle ABC contains square DBEF which has D on AB, E on BC, and F on CA.

Given that AB = 21 and BC = 28, determine the side length of the square.

A D B F E C

 

A D B F E C

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