Solve the math problem please?

if an angle ABC was inscribed in a circle and measured 70 degrees, what is the degree measure of arc ABC?

1 Answer
Apr 25, 2018

Arc ABC = 220 degrees

Explanation:

Angle ABC is an inscribed angle. What this means is that it is half the measurement of the arc it cuts, which is arc AC.

2m Angle ABC = Arc AC
#2 * 70 = Arc AC = 140#

A circle is 360 degrees, so arc ABC must be 360 - Arc AC
#360 - 140 = 220#