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36+64 = 100
√100 = 10

Therefore AB (C) = 10

#pythagorus

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I think AB is equal to 12 , sorry I am not good at maths..lol

If AB line would be tangent with the triangles corners, probably I could do it. But as this looks way harder and while I don't know how to approach it myself, with a little bit of AI help (full disclosure) the answer would be that the length of 𝐴𝐵 is approximately 15.62.