Question

To derive the fact that the length of the arc of a circle intercepted by an angle is proportional to the radius of the circle, what should the arc length first be compared to? (1 point)
• the circumference
• the area
• a chord
• the diameter

Answer 1

The arc length should first be compared to **the circumference**. This comparison will help establish the relationship that the arc length is proportional to the radius of the circle based on the angle subtended at the center.