Respuesta :

Hello from MrBillDoesMath!

Answer:

6 sqrt(2)

Discussion:  

In a 45-45-90 isosceles the legs have equal length. Using the Pythagorean theorem

x^2 = 6^2 + 6^2

x^2 = 2*( 6)^2                  => 6taking square root of both sides

x = sqrt(2) * 6

Thank you,

MrB

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