Math Problem Statement
If the angle of elevation of the top of a vertical 25 m high building is 46.333o, how far is it to the building?
Solution
We can solve this problem using trigonometry. Specifically, the tangent function is suitable since we are dealing with a right triangle formed by the building, the ground, and the observer’s line of sight to the top of the building.
The tangent function is given by:
Where:
- (angle of elevation)
- Opposite side = 25 m (the height of the building)
- Adjacent side = the distance to the building (let's call it )
Step-by-Step Solution
Rearranging for :
Using a calculator:
Final Answer
The distance to the building is approximately 23.97 meters.
Do you want more details or have any further questions?
Here are five related questions to explore:
- How would the answer change if the building height were 30 m?
- What is the horizontal distance if the observer is standing on a 5 m platform?
- What if the angle of elevation is reduced to 30°? How does the distance change?
- How would you calculate the angle of elevation if the distance is known?
- How can sine and cosine functions help in different elevation scenarios?
Tip: Always ensure your calculator is in degree mode when working with angles in degrees.
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Math Problem Analysis
Mathematical Concepts
Trigonometry
Right Triangle
Angle of Elevation
Formulas
tan(θ) = opposite / adjacent
d = 25 / tan(46.333°)
Theorems
Tangent function in right triangles
Suitable Grade Level
Grades 9-10
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