find the value of a
Inscibed angle in a circle is 1/2 the value of the intercepted arc
intercepted arc = 180 degrees
sooo 15 a = 180
a = 12 degrees
Just a slight correction to EP's answer
angle MLK intercepts an arc of 180
So its measure = 90
So
15 a = 90
a = 90 / 15 = 6
+36916 
