Circle Geometry Concepts

This video tutorial explains the different parts of a circle, including chords, segments, arcs, and sectors. A chord is a straight line connecting two points on a circle's circumference, dividing the circle into minor and major segments. An arc is a section of the circumference, also classified as minor or major. Sectors are sections of a circle formed by two radii and an arc, resembling a slice of pizza, and are also categorized as minor or major. The video concludes with a summary and encourages viewers to practice these concepts.

What do the terms chord, segment, arc, and sector have in common?

• They are all types of triangles.

• They are all types of polygons.

• They are all parts of a square.

• They are all parts of a circle.

What is a chord in a circle?

• A straight line connecting two points on the circle's circumference.

• A line that passes through the center of the circle.

• A line that touches the circle at one point.

• A curved line inside the circle.

What happens when a chord divides a circle?

• It creates two equal parts.

• It forms a triangle.

• It splits the circle into two segments.

• It forms a square.

What is the smaller part called when a chord divides a circle?

• Minor segment

• Major segment

• Major arc

• Minor arc

What is an arc in the context of a circle?

• A straight line inside the circle.

• A section of the circle's circumference.

• A point on the circle.

• A line that passes through the center.

How do we refer to the smaller arc between two points on a circle?

• Major arc

• Minor arc

• Minor segment

• Major segment

What is a sector in a circle?

• A line that divides the circle into two equal parts.

• A straight line inside the circle.

• A point on the circle's circumference.

• A section of the circle formed by two radii and an arc.

What forms the boundary of a minor sector?

• Two chords and a minor arc

• Two radii and a minor arc

• A chord and a major arc

• Two radii and a major arc

Which of the following is NOT a way to divide a circle?

• Using two radii and an arc

• Using a chord

• Using a diameter

• Using a tangent

What is the major sector in a circle?

• The larger section formed by two radii and a major arc

• The smaller section formed by two radii and a minor arc

• The section formed by a chord

• The section formed by a tangent