Question

1
What is the measure of arc BD?
90

180

30

330

Answer 1

The measure of arc BD is the SUM of the measures of the two parts, arcs BC and CD: m arc BD = m arc BC + m arc CD The degree measure of an arc is the same as the degree measure of its central angle. The central angle for arc CD has a measure of 90 degrees, so this is also the measure of arc CD

Explanation: