This relationship can be used to calculate the length or measure of an arc.
The arc length between
can be measured using the relationship between the arc length and arc measure. The arc measure is known,
and with the radius,
in., the circumference can be calculated. The circumference is given by the formula
Therefore, the circumference is:
The values for the arc measure and the circumference are now used to find the arc length.
Th arc length can be calculated to