Height of tree Homework problem

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SUMMARY

The height of a tree can be calculated using trigonometric functions based on the distance from the observer and the angle of elevation. In this discussion, the observer is 76 meters away from the tree, with an angle of elevation of 32 degrees. The correct calculation for the height of the tree is achieved using the tangent function: height = 76 * tan(32), resulting in approximately 47.5 meters. The initial calculations using sine and cosine were incorrect for determining the height directly.

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  • Understanding of basic trigonometric functions (sine, cosine, tangent)
  • Familiarity with angle measurement in degrees
  • Ability to perform calculations involving square roots
  • Knowledge of right triangle properties
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  • Learn how to use a scientific calculator for trigonometric functions
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bengaltiger14
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Suppose there is a tree of unknown height. I am standing 76 meters away from the tree and the top of the tree is 32 degrees from where I am standing. Could I find the height of the tree by this:

76 cos(32) =64
76 sin(32) =40

Magnitude = SQRT 64^2 + 40^2
Height of Tree equals 75 meters??
 
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I may be wrong, but:

Opposite = adjacent * Tan angle
= 76 * Tan 32
= 47.5

Is that one of your answers? If not, forget I replied. :D
 
I think that is the right way. I think 47 meters is the correct answer.
 

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