### Quiz: Acute Angles **Question:** Which angle below is an acute angle? **Options:** - \( \boxed{\circ} \quad \frac{3\pi}{4} \) - \( \boxed{\circ} \quad \frac{3\pi}{2} \) - \( \boxed{\rightarrow} \quad \frac{\pi}{2} \) - \( \boxed{\circ} \quad \frac{\pi}{3} \) An acute angle is an angle that is less than \(90^\circ\) or \(\frac{\pi}{2}\) radians. Evaluate each given option to determine which one represents an acute angle. **Notes on Angles in Radians:** - \( \frac{3\pi}{4} \) radians = \( 135^\circ \) (not an acute angle) - \( \frac{3\pi}{2} \) radians = \( 270^\circ \) (not an acute angle) - \( \frac{\pi}{2} \) radians = \( 90^\circ \) (not an acute angle) - \( \frac{\pi}{3} \) radians = \( 60^\circ \) (an acute angle) **Correct Answer:** The acute angle among the provided options is \( \frac{\pi}{3} \).