The right answer is The Same Length. The triangle displayed is Isosceles. The explanation of this statement is the fact that the Line which is making a right angle it is also the one that slices the segment into equal segments. Mathematically speaking, in our triangle the Median is perpendicular on the segment from which results that the triangle is Isosceles and x = y.
You only use half of the bag of walnuts and you buy another pound bag of almonds. you are going to use the entire bag of almonds because that's the 2/3 you're missing