Arc Measures and Central Angles

The video tutorial covers solving problems related to arc measures in circles, using examples from Khan Academy. It explains how to determine the arc measure by identifying the central angle that intercepts the arc. The tutorial includes three example problems: calculating the arc measure of a minor arc, using vertical angles to find the arc measure, and determining the measure of a major arc using the circle's diameter.

What is the arc measure of arc AC if the central angle CPA is 174 degrees?

• 70 degrees

• 104 degrees

• 174 degrees

• 90 degrees

If the central angle CPA is 174 degrees, what is the arc measure of arc AC?

• 90 degrees

• 70 degrees

• 104 degrees

• 174 degrees

How do you determine the arc measure of arc AB if the vertical angle is 93 degrees and another angle is 38 degrees?

• Add 38 degrees to 93 degrees

• Multiply 38 degrees by 93 degrees

• Subtract 38 degrees from 93 degrees

• Divide 93 degrees by 38 degrees

What is the arc measure of arc AB if the central angle is 55 degrees?

• 38 degrees

• 180 degrees

• 93 degrees

• 55 degrees

If the central angle is 93 degrees and another angle is 38 degrees, what is the arc measure of arc AB?

• 55 degrees

• 131 degrees

• 38 degrees

• 93 degrees

What is the arc measure of major arc A, B, C if the central angle is 249 degrees?

• 90 degrees

• 69 degrees

• 180 degrees

• 249 degrees

How do you calculate the arc measure of major arc A, B, C if the diameter is 180 degrees and an additional angle is 69 degrees?

• Subtract 69 degrees from 180 degrees

• Divide 180 degrees by 69 degrees

• Multiply 180 degrees by 69 degrees

• Add 180 degrees and 69 degrees

What is the arc measure of major arc A, B, C if the diameter is 180 degrees and an additional angle is 69 degrees?

• 90 degrees

• 249 degrees

• 180 degrees

• 69 degrees

If the diameter is 180 degrees and an additional angle is 69 degrees, what is the arc measure of major arc A, B, C?

• 90 degrees

• 249 degrees

• 180 degrees

• 69 degrees

What is the arc measure of major arc A, B, C if the central angle is 249 degrees?

• 249 degrees

• 180 degrees

• 69 degrees

• 90 degrees