question 1.

part i distance traveled by man d=s*t .6*20=12 distance traveled by woman =.4*20=8 i cant do part ii. ive tried setting up a triangle with there distances i just worked out and you are given the angle tan^-1 3/4 and i have tried the sine rule to work it out but the right answer is 60 degrees and i am not getting it. previous similar worked examples were solved using the sine rule