Question: In a circle, if the angle subtended by a chord at the center is 80 degrees, what is the angle subtended at any point on the remaining part of the circle?

Options:

1. 40
2. 80
3. 100
4. 160

Correct Answer: 40

Solution:

The angle subtended at the circumference is half of that at the center, so it is 80/2 = 40 degrees.