What is a sector and an arc tutoring

The video tutorial explains the fundamental concepts of circles, including their definition, parts such as the center, radius, and diameter. It further delves into the concept of sectors, explaining how to calculate their area as a fraction of the circle's total area using the formula π R-squared. Finally, it covers the circumference of a circle and introduces arcs, which are parts of the circumference between two points.

What is the term for the distance from the center of a circle to any point on its edge?

• Diameter

• Circumference

• Sector

• Radius

If you have two radii crossing each other, what do they form?

• Circumference

• Arc

• Diameter

• Sector

What is a sector in a circle?

• The entire area of the circle

• A line segment from the center to the circumference

• A part of the circumference

• A portion of the circle's area

How is the area of a sector related to the area of the circle?

• It is unrelated to the circle's area

• It is a fraction of the circle's area

• It is equal to the area of the circle

• It is twice the area of the circle

What do we call a part of the circumference between two points?

• Sector

• Arc

• Diameter

• Radius