The second example is incorrect because if the ABD is a right triangle, we should get the same answer for segment AD, but

AD^2 = 84^2-12^2 = (83.138438763306110089317424392282)^2

and not 80, The figure must be corrected.

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TopNewestThanks! I have removed the problem.

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True. It's a bad example. @Sharky Kesa. What do you use for geometrical figures? I would've corrected it myself if I knew how to do it.

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