Answer:
45 degrees
Explanation:
* When I type <, it mean angle
<KLM = <KML
Because the whole shape is a square, the center of the diagonals make 4 ninety degree angles.
So, <LKM = 90 degrees.
180 - 90 = 90
90 should be divided into two congruent angles. (<KLM and <KML)
each angle will be 45 degrees