Bearings and Angle Calculations

The video tutorial explains how to solve a bearings problem using the S Rule and cosine rule. It begins with setting up the problem and drawing a diagram, followed by applying the cosine rule to find distances. The tutorial then demonstrates how to calculate bearings using angles and rules, concluding with final calculations and a summary of the solution.

What is the first step suggested before solving the bearings problem?

• Draw a diagram

• Watch the entire video

• Attempt the problem independently

• Read a textbook

What is the initial bearing of the ship from point A?

• 30°

• 50°

• 60°

• 40°

Why is it suggested to extend the North line further down?

• To make the problem more complex

• To make the diagram look better

• To confuse the students

• To help with angle calculations

What is the new bearing when the ship alters course at point B?

• 140°

• 180°

• 120°

• 160°

Which rule is used to calculate the distance AC?

• Tangent Rule

• Pythagorean Theorem

• Cosine Rule

• Sine Rule

What is the calculated distance AC rounded to two significant figures?

• 4.6 km

• 4.4 km

• 4.5 km

• 4.3 km

What angle is used in the cosine rule calculation for AC?

• 100°

• 80°

• 60°

• 40°

What is the alternate angle to the 20° angle at point B?

• 50°

• 40°

• 30°

• 20°

Which rule is chosen to find angle Theta?

• Cosine Rule

• Secant Rule

• Sine Rule

• Tangent Rule

What is the value of sin Theta calculated in the video?

• 0.796

• 0.496

• 0.596

• 0.696