
KKK, L L\,L and M M\,M are points on a circle, centre OOO. SMT SMT\,SMT is a tangent to the circle at MMM.
KL=LMKL = LMKL=LM Angle SMK=y∘SMK = y^\circSMK=y∘
Find the size of angle OMLOMLOML, in terms of yyy. Give reasons for each stage of your working.