Twisted Restraints

Geometry Level 3

The above shows a rectangle \(ABCD\) with an area of 672, a diagonal \(CB\) of length 42.
Given that \(AE \perp CB \) and \(DF \perp CB\), find \(CE\).

Give your answer to 1 decimal place.

You may use a calculator for the final step of your calculation.

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