The correct answer is: [D]: " 8√2 " .
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Since this is a "45-45-90" triangle;
and we are given that one of the "non-hypotenuse sides" is "8" ;
The other non-hypotenuse side is "8"; and the hypotenuse, "h", (as denoted in the image), is equal to: "8√2"
Note: The rule for "45-45-90" triangles: the sides are "x, x, and x√2" ; in which: "x√2" is the hypotenuse.
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