Questions: Find a positive angle less than 360° or 2π that is coterminal with the given angle.
-84°
84°
96°
276°
456°
Transcript text: Question 14
3.7
Find a positive angle less than $360^{\circ}$ or $2 \pi$ that is coterminal with the given angle.
\[
-84^{\circ}
\]
$84^{\circ}$
$96^{\circ}$
$276^{\circ}$
$456^{\circ}$
Solution
Solution Steps
To find a positive angle less than \(360^\circ\) that is coterminal with a given angle, we can add or subtract \(360^\circ\) until the result is within the desired range. For a negative angle, we add \(360^\circ\) until the angle is positive and less than \(360^\circ\).
Step 1: Identify the Given Angle
The given angle is \(-84^\circ\).
Step 2: Add \(360^\circ\) to the Given Angle
To find a positive coterminal angle, we add \(360^\circ\) to the given angle:
\[
-84^\circ + 360^\circ = 276^\circ
\]
Final Answer
The positive angle less than \(360^\circ\) that is coterminal with \(-84^\circ\) is:
\[
\boxed{276^\circ}
\]