Week 3 Worksheet 1 Angles of Elevation and Depression online ... - Free Printable

To solve this worksheet, we need to understand the difference between an angle of elevation and an angle of depression.

* Angle of Elevation: This is the angle when you look up at something. Imagine standing on the ground and looking up at a bird in the sky. Your line of sight goes upward from the horizontal.
* Angle of Depression: This is the angle when you look down at something. Imagine standing on a cliff and looking down at a boat in the water. Your line of sight goes downward from the horizontal.

In all these pictures, there is a dashed blue line representing the "horizontal" level (eye level). We just need to see if angle $A$ is above or below that dashed line.

Let's look at each problem:

1. Helicopter and House: The helicopter is high up. The line of sight goes from the helicopter down to the house. Angle $A$ is below the horizontal dashed line.
* This is an angle of depression.

2. Person and Volleyball: The person is standing tall. The volleyball is on the ground. The line of sight goes from the person's eyes down to the ball. Angle $A$ is below the horizontal line.
* This is an angle of depression.

3. Hot Air Balloon and Person: The hot air balloon is in the sky. The person is on the ground. The line of sight goes from the balloon down to the person. Angle $A$ is below the horizontal dashed line.
* This is an angle of depression.

4. Fish and Sailboat: The fish is underwater. The sailboat is on the surface. The line of sight goes from the fish up to the boat. Angle $A$ is above the horizontal dashed line.
* This is an angle of elevation.

5. Bird and Tree: The bird is flying in the air. The tree top is lower than the bird. The line of sight goes from the bird down to the tree. Angle $A$ is below the horizontal dashed line.
* This is an angle of depression.

Final Answer:
1. angle of depression
2. angle of depression
3. angle of depression
4. angle of elevation
5. angle of depression