What is the relationship between the arc length and sector area of a circle?
Start with a circle that has a central angle of measure mº. Consider the arc and the sector that the angle
subtends.
The arc has a length of
m
times the (select)
360
of the circle.
m
The sector has an area of times the (select)
360
of the circle.
area to (select)
area, the
The ratio of arc length to circumference is the same as the ratio of (select)
m
ratio of
360
Once you know one value, you can find the other.
The (select)
Disź times the (select)
taking away the units.
