**Definition of Angle of Elevation**

The word “elevation” means “rise” or “move up”.

Angle of elevation is the angle between the horizontal and the line of sight to an object above the horizontal.

Take a look at the example below.

**Example - Angle of Elevation**

In the picture below, an observer is standing at the top of a building and looking straight ahead at the birds (horizontal line). The observer must raise his eyes to see the airplane (slanting line).

The angle formed between the **two lines** is called the angle of elevation.

**Solved Example on Angle of Elevation**

The angle of elevation of the top of a pole measures 48° from a point on the ground 18 ft away from its base. Find the height of the flagpole.

**Solution:**

**Step 1:** Let’s first visualize the situation.

**Step 2:**** **Let ‘** x**’ be the height of the flagpole.

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**Step 5:**** **So, the flagpole is about 20 ft high.

**Related Terms for Angle of Depression**

- Angle
- Horizontal Line