Math Problem Statement

Solve for x in a right triangle with a 38° angle, one side length of 47, and a hypotenuse of 203.

Solution

To solve for xx in this right triangle, we can apply trigonometric ratios. Here's how we can approach it:

We are given:

  • One angle: 3838^\circ
  • One side: 4747 (adjacent to the angle)
  • The hypotenuse: 203203

We need to find the length of side xx, which is opposite the 3838^\circ angle.

Step 1: Identify the relevant trigonometric ratio

Since we know the adjacent side (47) and the hypotenuse (203), we can use the cosine function to find xx:

cos(θ)=adjacenthypotenuse\cos(\theta) = \frac{\text{adjacent}}{\text{hypotenuse}}

Substitute in the known values:

cos(38)=47203\cos(38^\circ) = \frac{47}{203}

Now, we can solve for xx. Let me calculate the result.

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Right Triangles
Cosine Function

Formulas

cos(θ) = adjacent / hypotenuse

Theorems

Basic Trigonometric Ratios

Suitable Grade Level

Grades 9-11