Math Problem Statement
Solve for x. Round to the nearest tenth, if necessary.
Solution
To solve for , we can use trigonometric ratios since the triangle involves a right angle () and the given angle of . The sides provided and the one to find are associated with the given angle .
Step 1: Identify sides relative to :
- is the hypotenuse of the triangle.
- is the adjacent side to the angle.
Step 2: Select the appropriate trigonometric ratio.
Using the cosine function (since cosine involves adjacent and hypotenuse):
Here:
Step 3: Solve for .
Rearranging the equation to solve for :
Step 4: Calculate .
Using a calculator:
So:
Final Answer:
Would you like further clarification or additional details?
Related Questions:
- What are the sine and tangent values of for this triangle?
- How would the problem change if the angle was different, say ?
- How do you verify your result if is given, and you need to find another side?
- Can you solve for using the Pythagorean Theorem in this problem?
- What is the relationship between angles and their corresponding side lengths in trigonometric problems?
Tip:
Always double-check your angle mode (degrees or radians) on your calculator when working with trigonometric functions!
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Math Problem Analysis
Mathematical Concepts
Trigonometry
Right Triangle Ratios
Cosine Function
Formulas
cos(θ) = adjacent / hypotenuse
Theorems
Trigonometric Ratios in Right Triangles
Suitable Grade Level
Grades 9-12