Measuring Arcs and Angles

The video tutorial guides viewers through calculating various angles and arcs in a circle using properties like vertical angles and diameters. It covers specific angles such as TR R A, BR RC, and arcs like ED, TB, and TE. The tutorial concludes with a review and the creation of a major arc.

What is the measure of angle TR R A?

• 29°

• 53°

• 24°

• 87°

If angle TRB is 53°, what is the measure of angle BR RC?

• 40°

• 127°

• 53°

• 87°

What is the measure of arc ED?

• 87°

• 53°

• 127°

• 24°

How is the measure of arc TB determined?

• By using the diameter

• By adding 53° and 87°

• By using the central angle

• By subtracting from 180°

What is the measure of arc TE?

• 127°

• 87°

• 53°

• 180°

What is the measure of angle DRC?

• 127°

• 180°

• 53°

• 87°

What is the measure of arc TED?

• 53°

• 87°

• 180°

• 127°

How do you calculate the measure of arc BD?

• By using the diameter

• By subtracting from 180°

• By using the central angle

• By adding 87° and 40°

What is the measure of arc AB?

• 127°

• 87°

• 53°

• 24°

How is a major arc defined in this context?

• An arc more than 180°

• An arc equal to the central angle

• An arc exactly 180°

• An arc less than 180°