Respuesta :

mumsy

Answer:

Step-by-step explanation:

you have right triangle & isosceles

so is 45-90-45

PR^2=PQ^2+QR^2  

c^2=a^2+b^2, where c is the hypotenuse, and a=b

(3[tex]\sqrt{2}[/tex])^2=2a^2

18=2a^2

9=a^2

a=3, b=3, both legs are equal to 3

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