A chord divides a circle into two arcs. The angle subtended by the major arc at the circumference is $110^\circ$. What is the central angle subtended by the major arc?

A chord divides a circle into two arcs: a major arc and a minor arc.

We are given that the angle subtended by the major arc at the circumference is $110^\circ$.

Step 1: Property of circle

The angle at the circumference (inscribed angle) is half the angle at the center subtended by the same arc.

So,
Central angle = $2 \times$ (angle at circumference)

Step 2: Apply the formula

Given:
Angle at the circumference = $110^\circ$

Therefore,
Central angle subtended by the major arc = $2 \times 110^\circ = 220^\circ$

Step 3: Conclusion

The central angle corresponding to the major arc is $220^\circ$.

Final Answer:

$220^\circ$