Answer:
LKM = 23.2°
Explanation:
Angle at LKM...since its a right angled triangle,use trigonometry ratios
Where you say,
;Angle at LKM...Tan LKM = (opposite side/adjacent side)
; In which the opposite side to angle LKM is 3.6km and the adjacent side is 8.4 km
; tan LKM = 3.6/8.4
; LKM = tan^(-1) [3.6/8.4]
; LKM = 23.2°