You sound just like the lady from Scotland's Rural Survey team. I wish they would post the video back on you tube about the Plane Table Survey, most of us really liked that video.
I have a queation. How do you do radiation? say u know coordinates of point B. U fl to B set to "0". Then point to C right. Then fr to C and B. Say if u know coordinates on A n B how do u find coordinates of C
From the coordinates of A and B you can get the bearing of the line AB and you have the angle which he calculated in the final answer and from that we can get the bearing of line Ac and by knowing the length of AC using tape or something and the coordinates of A and the bearing of AC then get coordinates of C