Easy Question, but giving me trouble

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SUMMARY

The problem involves calculating the horizontal distance from a press box 38 feet above the ground to second base, using a 15-degree angle of depression. The correct approach utilizes the tangent function, where the opposite side is 38 feet and the angle is 15 degrees. The horizontal distance is calculated as 38 feet divided by the tangent of 15 degrees, resulting in an accurate distance of 142 feet. The initial miscalculation arose from attempting to use the sine function instead of the tangent function.

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  • Understanding of basic trigonometric functions: sine, cosine, and tangent.
  • Ability to interpret angles of depression in right triangles.
  • Familiarity with the concept of opposite and adjacent sides in trigonometry.
  • Basic skills in solving equations involving trigonometric ratios.
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  • Explore real-world applications of trigonometry in fields such as physics and engineering.
  • Practice solving similar problems involving angles of elevation and depression.
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Homework Statement



The press box at a baseball park is 38 feet above the ground. A reporter in the press box looks at an angle of 15 degrees below the horizontal to see second base. What is the distance form the press box to second base?

Homework Equations



sin = opp / hyp

The Attempt at a Solution



I am trying 38ft / sin15 and I am getting 146 ft. I know the answer is 142 ft. Or atleast that is what my book tells me the answer should be. What am I doing wrong?
 
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Dave25 said:
What am I doing wrong?
Not drawing a diagram before reaching for the calculator ?
 
Ha! Ok, you got me there. So, I just wrote down the diagram and I still can't figure it out. So what do I need to do to solve this problem.
 
So you have a triangle
The angle between the horizontal and the hypotonuse is 15deg
The vertical side opposite is 38" high

Is the question asking for the horizontal distance - rather than the slope distance?
Which trig function links opposite/adjacent
 
Yeah, it's asking for horizontal distance and I was trying to find slope distance. Tangent is opp / adj and... my answer is 142 ft. Thanks a lot. I guess they don't give you the 2008 PF Award for nothing huh? Thanks again.
 

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