How to find the measure of a major arc of a circle

The video tutorial explains how to find the measures of minor and major arcs. It begins by identifying the central angle that forms the minor arc and explains that the minor arc's measure is equal to this angle. To find the major arc, subtract the minor arc's measure from 360 degrees. The tutorial emphasizes understanding the difference between minor and major arcs and provides a step-by-step calculation process.

What is the significance of the central angle in determining arcs?

• It helps in identifying the major arc.

• It defines the measurement of the minor arc.

• It determines the length of the radius.

• It is used to calculate the circumference.

How do you calculate the measurement of a minor arc?

• By subtracting the central angle from 180 degrees.

• By adding 90 degrees to the central angle.

• By doubling the central angle.

• By using the central angle directly.

What is the measurement of the minor arc if the central angle is 40 degrees?

• 40 degrees

• 360 degrees

• 320 degrees

• 80 degrees

How is the major arc measurement determined?

• By subtracting the minor arc from 360 degrees.

• By doubling the minor arc.

• By adding 180 degrees to the minor arc.

• By using the diameter of the circle.

What is the measurement of the major arc if the minor arc is 40 degrees?

• 40 degrees

• 360 degrees

• 180 degrees

• 320 degrees