Vectors: Crossing a River with Current

A supply boat needs to cross a river from point A to point B, as shown in the diagram. Point B is 1.5km downstream. The boat can travel at a speed of 20 km/h relative to the water. The current is flowing at 12 km/h. The width of the river is 500m.
a) Determine the heading the captain should set to cross the river to point B.
b) Determine the heading the captain must set to return to point A.

[@jucyliathong7791]

Tq. Stuck at a similar question for decades. And sine rule was just the key that i missed😅

[@code988yay]

THANK YOU SO MUCH

[@zianiera]

Great tutorial.Thank you

[@boomertanker8948]

Cool

[@Stvrfiire_]

THANKKKKKKKKKKKK YOUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU