Exploring the Parts of a Circle

The video tutorial introduces the parts of a circle, including the center, circumference, arc, radius, sector, diameter, chord, segment, secant, and tangent. Each part is explained with its definition and properties, providing a comprehensive understanding of circle geometry.

What is the center of a circle?

• The point equidistant from all points on the circle's edge

• The longest chord of the circle

• The point where two radii meet

• Any point on the circle's circumference

What term describes the boundary measurement of a circle?

• Circumference

• Arc

• Diameter

• Radius

What is a radius of a circle?

• A line from the center to any point on the circumference

• A part of the circle's area divided by an arc

• The longest possible chord

• A line connecting two points on the circle

What defines a sector in a circle?

• A region enclosed by two radii

• A straight line through the center

• A part of the circumference

• A pie-shaped part made by an arc and two radii

What is the diameter of a circle?

• The length of the circle's boundary

• A line passing through the center with endpoints on the circumference

• The shortest chord

• A line from the center to the circumference

Tags

CCSS.HSG.C.A.2

What is a chord in a circle?

• A line joining any two points on the circumference

• The longest radius

• A line that touches the circle at one point

• A line that cuts the circle into two

What is a segment in a circle?

• The area outside the circle

• A pie-shaped part of the circle

• A line intersecting the circle at two points

• A region enclosed by a chord and an arc

What does a secant line do?

• Touches the circle at one point

• Passes through the center

• Intersects the circle at two points

• Divides the circle into two equal parts

What is the definition of a tangent to a circle?

• A line that divides the circle into two halves

• A line that touches the circle at exactly one point

• A line from the center to the circumference

• A line intersecting the circle at two points

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