a$)$

b$)$

Draw dia grams and compute clochwise an gle at A between $B$&$C$

i$)$ Bearing $AB=40{78}^{\text{'}}{06}^{\text{'}\text{'}}$ and Bearing $AC=123{30}^{\text{'}}{30}^{\text{'}\text{'}}$

ii$)$ Bearing $AB=80{30}^{\text{'}}{00}^{\text{'}\text{'}}$ and Bearing $AC=24545{00}^{\text{'}\text{'}}$

iii$)$ Bearing $AB=320{46}^{\text{'}}{54}^{\text{'}\text{'}}$ and Bearing $AC=45{30}^{\text{'}}{56}^{\text{'}\text{'}}$