Navigational Bearings and Distance Calculations

The video tutorial explains how to determine the bearing of a lighthouse from a boat using a diagram. It covers the interpretation of bearings, the importance of diagrams, and the calculation of angles. The tutorial also demonstrates the application of the sine rule to find distances and concludes with final calculations and result verification.

What is the primary purpose of using a diagram in navigation problems?

• To make the problem look more complex

• To visually represent the problem for better understanding

• To confuse the solver

• To avoid using mathematical formulas

What does a bearing of 310 degrees from a boat indicate?

• The boat is facing southeast

• The boat is facing northwest

• The boat is facing directly south

• The boat is facing directly north

After traveling 1200 meters due west, what is the new bearing of the lighthouse from the boat?

• 310 degrees

• 328 degrees

• 270 degrees

• 180 degrees

How is the angle ABL calculated using the given bearings?

• By dividing the bearings by two

• By using the concept of right angles and subtracting from 360 degrees

• By adding the bearings

• By subtracting the smaller bearing from the larger one

What rule is used to find the distance from the boat to the lighthouse?

• Pythagorean theorem

• Tangent rule

• Cosine rule

• Sine rule

What is the final calculation needed to determine the distance the boat needs to travel to be due south of the lighthouse?

• Using the cosine of the angle

• Using the sine rule again

• Using the Pythagorean theorem

• Using the tangent of the angle