The triangle below is isosceles. Find the length of side x in simplest radical form with a rational denominator.
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Hi
as the triangle is rectangle isoceles, then the three side are :
x , x , 6 where 6 is the hypotenuse.
So using pythagoras theorem we know that : x²+x² = 6²
2x² = 36
x² = 36/2
x² = 18
x = √18