Question

what type of angle is this?
obtuse
straight
right
acute

Explanation:

Step1: Recall angle definitions

• Acute angle: \(0^{\circ}<\theta < 90^{\circ}\)
• Right angle: \(\theta = 90^{\circ}\) (marked with a small square)
• Obtuse angle: \(90^{\circ}<\theta < 180^{\circ}\)
• Straight angle: \(\theta = 180^{\circ}\)

Step2: Analyze the given angle

The angle in the figure has a small square at vertex \(A\), which is the standard notation for a \(90^{\circ}\) angle.

So, the angle is a right angle.

Answer:

C. right