we have

two equal angles (x), If we

extend k and N such that they meet at right angle we have a 90 -45-45 triangle.In isoscles triangle two sides have equal length.

In this case side opposite angle x are equal.We also know that there are two sides with length 3 and 4

side of length 3 is parallel to n and side of length 4 is parallel to kTherefore we have K + 4 = n + 3

If we reduce 3 from both sides we get,

k + 1 = n

Therefore since we add something to k to make it equal to n k is smaller than n
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This is my response to the question and may be incorrect. Feel free to rectify any mistakes