Finding the bearing of a plane using trigonometry

What is the initial direction and distance the ship travels from the port?

• 30 nautical miles due East

• 30 nautical miles due North

• 15 nautical miles due East

• 15 nautical miles due North

Which trigonometric function is used to find the length of the side opposite the 15-degree angle?

• Cosine

• Tangent

• Secant

• Sine

What is the calculated length of the side opposite the 15-degree angle?

• 9.66 nautical miles

• 15 nautical miles

• 2.6 nautical miles

• 10 nautical miles

Which trigonometric function is used to find the length of the adjacent side to the 15-degree angle?

• Sine

• Cotangent

• Cosine

• Tangent

What is the length of the adjacent side calculated using the cosine function?

• 15 nautical miles

• 10 nautical miles

• 9.66 nautical miles

• 2.6 nautical miles

Which trigonometric function is used to find the angle Theta?

• Cosine

• Sine

• Tangent

• Secant

What is the final calculated bearing angle of the ship from the port?

• 3.75 degrees

• 9.66 degrees

• 15 degrees

• 2.6 degrees