Question

1. classify the angle.

image of an angle with two blue arrows as rays and a vertex, followed by options: acute, right, obtuse (circled), straight, reflex

Explanation:

Step1: Recall angle classification definitions

• Acute angle: Less than \(90^\circ\), greater than \(0^\circ\).
• Right angle: Exactly \(90^\circ\).
• Obtuse angle: Greater than \(90^\circ\), less than \(180^\circ\).
• Straight angle: Exactly \(180^\circ\).
• Reflex angle: Greater than \(180^\circ\), less than \(360^\circ\).

Step2: Analyze the given angle

The angle in the diagram appears to be less than \(90^\circ\) (visually, it's a narrow angle between two rays, smaller than a right angle). So it matches the definition of an acute angle.

Answer:

acute