Question

For each exercise draw $\odot O$ with radius $12$. Then draw radii $\overline{OA}$and to $\overline{OB}$ form an angle with the measure named. Find the length of $\overline{AB}$.

b. $m\angle AOB=180°$

Short answer

$AB=24$.

Step-by-step solution

Step 1. Given information. 

Step 2. Concept used.

$180°$ means a straight line.

Step 3. Find value.

Since, $m\angle AOB=180°$, so the two rays of the angle $\overline{OA}$ and $\overline{OB}$ are linear .Hence $\overline{AB}$ becomes the diameter of the circle.

Therefore, this length of $AB=24$.