Questions: If θ is an acute angle, solve the equation tan θ = 1/7. Express your answer in degrees, rounded to one decimal place.
Transcript text: If $\theta$ is an acute angle, solve the equation $\tan \theta=\frac{1}{7}$. Express your answer in degrees, rounded to one decimal place.
Solution
Solution Steps
Step 1: Given Equation
We start with the equation for the tangent of an angle \( \theta \):
\[
\tan \theta = \frac{1}{7}
\]
Step 2: Finding the Angle in Radians
To find the angle \( \theta \), we use the arctangent function:
\[
\theta = \tan^{-1}\left(\frac{1}{7}\right)
\]
Calculating this gives:
\[
\theta \approx 0.1419 \text{ radians}
\]
Step 3: Converting Radians to Degrees
Next, we convert the angle from radians to degrees using the conversion factor \( \frac{180}{\pi} \):
\[
\theta_{\text{degrees}} = \theta \times \frac{180}{\pi} \approx 0.1419 \times 57.2958 \approx 8.1301
\]
Rounding this to one decimal place, we find:
\[
\theta_{\text{degrees}} \approx 8.1
\]
Final Answer
The solution for the acute angle \( \theta \) is:
\[
\boxed{\theta = 8.1}
\]