both angle KLM and angle MLN are 45 degrees. Complementary angles add up to 90 degrees and if LM is a common ray between the two angles and bisects KLN then that means it cuts the angle in half thus creating the two other angles KLM and MLN so 90/2=45. Angle KLM is 45 degrees. Angle MLN is 45 degrees. 45+45=90. 90=Complementary.
