Bearings and Interior Angles

The video tutorial explains how to find the bearings, azimuth, and interior angles of a five-sided polygon. It provides step-by-step calculations for each point of the polygon, ensuring the sum of the interior angles is correct. The tutorial covers the bearings from one point to another and uses these to calculate the interior angles, verifying the total sum to ensure accuracy.

What is the primary focus of the video tutorial?

• Calculating the area of a polygon

• Learning about the history of geometry

• Finding the bearings, azimuth, and interior angles of a polygon

• Understanding the properties of triangles

What is the given bearing from point A towards point B?

• North 35 degrees west

• South 25 degrees east

• South 85 degrees east

• North 20 degrees east

How is the interior angle at point A calculated?

• By dividing 85 degrees by 20 degrees

• By multiplying 85 degrees by 20 degrees

• By subtracting 20 degrees from 85 degrees

• By adding 85 degrees and 20 degrees

What is the interior angle at point A?

• 105 degrees

• 120 degrees

• 77 degrees

• 113 degrees

What is the given bearing from point B towards point C?

• North 20 degrees east

• South 78 degrees west

• North 35 degrees west

• South 25 degrees east

How is the interior angle at point B calculated?

• By adding 5 degrees, 90 degrees, and 25 degrees

• By dividing 90 degrees by 5 degrees

• By subtracting 25 degrees from 90 degrees

• By multiplying 5 degrees by 25 degrees

What is the interior angle at point B?

• 113 degrees

• 77 degrees

• 120 degrees

• 105 degrees

What is the given bearing from point C towards point D?

• South 78 degrees west

• North 20 degrees east

• South 25 degrees east

• North 35 degrees west

How is the interior angle at point C calculated?

• By adding 12 degrees and 65 degrees

• By dividing 90 degrees by 78 degrees

• By subtracting 78 degrees from 90 degrees

• By multiplying 12 degrees by 65 degrees

What is the interior angle at point C?

• 120 degrees

• 77 degrees

• 113 degrees

• 105 degrees