Correct Answer - `/_ NMS = 44^(@)`
m (arc NS ) `= 125^(@)` , m ( arc EF ) `= 37^(@)`
`/_ NMS ` has its vertex in the exterior of the circle and intercepts arc EF and arc NS.
`:. /_ NMS = (1)/(2) [ m (arc NS ) - m ( arc EF ) ]`
`:. /_ NMS = (1)/(2) xx [ 125 ^(@) - 37^(@)]`
`:. /_ NMS = (1)/(2) xx88^(@)` `:. /_ NMS = 44^(@)`