Question

what is the value of b?

Explanation:

Step1: Use the property of angles around a point

The sum of angles around a point is \(360^{\circ}\). But here, we can use the property of vertical - angle - like relationships. Notice that \(b + 49.8^{\circ}+48.3^{\circ}=180^{\circ}\) (since they form a straight - line pair of angles).

Step2: Solve for \(b\)

$$
LATEXBLOCK0
$$

Answer:

\(81.9\)