Question

value: 1
find the measure of the arc.
?
55°
46°
a. 46°
b. 55°
c. 110°
d. 125°

Explanation:

Step1: Recall circle - angle property

The sum of the central angles of a circle is 360°. But if we assume the arc in question is the one opposite the 55° central - angle, the measure of an arc is equal to the measure of its central angle.

Step2: Identify the arc measure

The measure of the arc opposite the 55° central angle is 55°.

Answer:

b. 55°