In Circle A, points B and C lie on the circumference, and since they are opposite each other, the line segment BC is a diameter of the circle. The segments AB and AC are both radii of the circle.
According to the triangle inequality theorem:
For any triangle, the sum of the lengths of any two sides must be greater than the length of the third side.
In this case, considering triangle ABC:
- AB + AC (the sum of the lengths of the two radii) must be greater than BC (the length of the diameter).
Thus, we have:
AB + AC > BC
So the correct inequality is:
AB + AC > BC.
The response is:
(greater than)