Question 145408
If your triangle looks like what I have imagined it to be from your description then this is the solution :

According to the Pythagoras theorem : a^2+ b^2 = c^2
Here a = 8, b = 6
Which means 8^2 + 6^2 = c^2
            64  + 36  = c^2
              100     = c^2
              c = sqrt(100) = 10
Hence, the third side of the triangle is 10

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