Question

section? 14. A boat is crossing the river as shown. To the nearest tenth of a degree, find the angle at which the boat must head upriver in order to travel directly across the river. IN 16 mi/h 4 mi/h S​

Answer 1

Rule:(sinx = opposite/hypotenuse)

x=sin‐¹(4/16) *use calculator*

Answer:14.47⁰

[note: we made it sin ‐¹ (inverse)* because we don't have the angle if we and if we have the angle and want to know the side we just use the rule.]