Question

what kind of angle is this? right acute obtuse or straight

Explanation:

Step1: Recall angle definitions

A right angle is $90^\circ$, acute is less than $90^\circ$, obtuse is more than $90^\circ$ but less than $180^\circ$, and a straight angle is $180^\circ$ (forms a straight line).

Step2: Analyze the figure

The figure shows a straight line (a straight angle has two rays forming a straight line, measuring $180^\circ$).

Answer:

straight (The angle is a straight angle because it forms a straight line, measuring $180^\circ$.)