Given a circle find the measure of an arc

The video tutorial explains how to measure arcs in a circle, focusing on the concepts of central angles, minor arcs, and major arcs. It begins with an introduction to measuring the arc from point P to R to U. The tutorial then describes the central angle and how it defines the minor arc, which in this case is 40 degrees. Finally, it covers the calculation of the major arc by subtracting the central angle from 360 degrees, resulting in a major arc of 320 degrees.

What is the term used for the arc determined by the central angle?

• Central arc

• Minor arc

• Peripheral arc

• Major arc

If a central angle is 50 degrees, what is the measure of the minor arc?

• 360 degrees

• 310 degrees

• 100 degrees

• 50 degrees

How do you calculate the major arc of a circle?

• Multiply the central angle by 2

• Divide the central angle by 2

• Subtract the central angle from 360 degrees

• Add 180 degrees to the minor arc

What is the measure of the major arc if the central angle is 40 degrees?

• 280 degrees

• 360 degrees

• 40 degrees

• 320 degrees

If the central angle is 90 degrees, what is the measure of the major arc?

• 360 degrees

• 180 degrees

• 270 degrees

• 90 degrees