GCSE Maths - What are Chords, Segments, Arcs and Sectors? (Circles Part 2) #107

This video tutorial explains four key terms related to circles: chords, segments, arcs, and sectors. A chord is a straight line connecting two points on a circle's circumference, dividing the circle into segments. Segments are categorized as minor or major based on their size. Arcs are sections of the circumference, also classified as minor or major. Sectors are portions of a circle resembling slices of pizza, defined by two radii and an arc. The video concludes by summarizing how these elements interact within a circle.

What is a chord in a circle?

• A line that passes through the center of the circle

• A straight line connecting two points on the circumference

• A line that divides the circle into equal halves

• A curved line inside the circle

How does a chord divide a circle?

• Into two equal parts

• Into a minor segment and a major segment

• Into four quadrants

• Into a minor arc and a major arc

What defines an arc in a circle?

• A line that is perpendicular to the radius

• A line from the center to the circumference

• A section of the circumference between two points

• A line that divides the circle into two segments

What is a sector in a circle?

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

• A section of the circumference

• A line that connects two points on the circumference

• A line that divides the circle into two arcs

How can a circle be divided using radii?

• Into two equal halves

• Into a minor arc and a major arc

• Into a minor sector and a major sector

• Into four equal quadrants