Please help me check....?

Question

1. A boy left camp and rode his bicycle due north for 45 m. He then turned and road due east to a bridge over a river where the bearing to the campsite was 210°. He then continued to a railway station where the bearing to the campsite was 246°. Calculate:
a) the distance to the camp from the bridge
b) the distance to the camp from the railway station
c) the distance from the bridge to the station

My answers:
a) distance=52m
b) distance=110.6m(to 1.decimal place)
c) distance=75m (to 1.decimal place)

2. In the triangle PQR, find the size of angel Q given that angle QPR
measures 59°, QR is 19.5km and PR is 14.8km.

My answer: angle Q=40.5° (correct to 1. decimal place)

Are my answers correct? Please tell me if they are incorrect. I have gone over these but I can't work out if anything is wrong with them.
I live in Australia...these conversions might help...
1cm(centimetre)=0.01m(metre)
10cm=0.1m
100cm=1m

1000m=1km(kilometre)

This is Geometry and Trigonometry grade 11

I do have to show working. Surely 0.1 difference wouldn't make my answer incorrect would it? I have shown working on my own paper.

Answer 1

(1) a,b,c correct
Are you sure you want to give b and c to 1 decimal place? Looks to me like you should use 2 significant figures (given you have 45m for your initial measurement) or maybe round to nearest metre.

(2) I get 40.58444053 so it should be 40.6 to 1 decimal place

Do you have to show your working?