2. The shadow of a building is cast by the sun at an angle of 60° above the horizon. Later, the shadow is now 10 meters longer, and the sun is at an angle of 30° above the horizon. A. Draw a diagram that models this scenario

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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**Problem Statement:**
2. The shadow of a building is cast by the sun at an angle of 60° above the horizon. Later, the shadow is now 10 meters longer, and the sun is at an angle of 30° above the horizon.

**Instruction:**
A. Draw a diagram that models this scenario.

**Explanation of Diagram:**
1. **Initial Condition:**
   - **Building:** Represent the building as a vertical line of unknown height \( H \).
   - **Sun's Angle (60°):** Draw a horizontal line from the base of the building and a line tilted at a 60° angle above this horizontal line, representing the direction of the sunlight.
   - **Shadow:** Mark the point where this sunlight meets the ground. The horizontal distance from the base of the building to this point is the shadow length \( S \).

2. **Later Condition:**
   - **Sun's Angle (30°):** Draw another horizontal line from the base of the building and another line tilted at a 30° angle above this horizontal line, representing the new direction of the sunlight.
   - **Extended Shadow:** Extend the shadow by 10 meters beyond the initial shadow length \( S \). Represent this total length as \( S + 10 \).

3. **Geometric Relationships:**
   - Use trigonometric functions to relate the height of the building and the lengths of shadows.
   - For the initial shadow:
     \[ S = H \cdot \cot(60°) \]
   - For the later, longer shadow:
     \[ S + 10 = H \cdot \cot(30°) \]

**Objective:**
   - Using the given angles and the increase in shadow length, compute the height of the building \( H \) and the lengths of the shadows \( S \) and \( S + 10 \) using trigonometric relationships.
Transcribed Image Text:**Problem Statement:** 2. The shadow of a building is cast by the sun at an angle of 60° above the horizon. Later, the shadow is now 10 meters longer, and the sun is at an angle of 30° above the horizon. **Instruction:** A. Draw a diagram that models this scenario. **Explanation of Diagram:** 1. **Initial Condition:** - **Building:** Represent the building as a vertical line of unknown height \( H \). - **Sun's Angle (60°):** Draw a horizontal line from the base of the building and a line tilted at a 60° angle above this horizontal line, representing the direction of the sunlight. - **Shadow:** Mark the point where this sunlight meets the ground. The horizontal distance from the base of the building to this point is the shadow length \( S \). 2. **Later Condition:** - **Sun's Angle (30°):** Draw another horizontal line from the base of the building and another line tilted at a 30° angle above this horizontal line, representing the new direction of the sunlight. - **Extended Shadow:** Extend the shadow by 10 meters beyond the initial shadow length \( S \). Represent this total length as \( S + 10 \). 3. **Geometric Relationships:** - Use trigonometric functions to relate the height of the building and the lengths of shadows. - For the initial shadow: \[ S = H \cdot \cot(60°) \] - For the later, longer shadow: \[ S + 10 = H \cdot \cot(30°) \] **Objective:** - Using the given angles and the increase in shadow length, compute the height of the building \( H \) and the lengths of the shadows \( S \) and \( S + 10 \) using trigonometric relationships.
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