Parts of a Circle

What defines the center of a circle?

• The point equidistant from all edges of the circle

• The longest chord of the circle

• A line that touches the circle at one point

• A part of the circumference

What term describes the boundary measurement of a circle?

• Arc

• Diameter

• Radius

• Circumference

How is the radius of a circle defined?

• Line joining two points on the circle

• Straight line passing through the center

• Distance from center to any point on circumference

• Longest possible chord of the circle

What is a sector of a circle?

• A line touching the circle at a single point

• A straight line intersecting the circle at two points

• Region enclosed by two radii and an arc

• The longest chord of the circle

What is the role of a diameter in a circle?

• It's a line that touches the circle at one point only

• It's the same as the radius

• It divides the circle into two equal parts

• It's the shortest distance between two points on the circle

Which statement best describes a chord of a circle?

• A line that intersects the circle at one point

• A line inside the circle touching two points on the circumference

• The distance from the center to the circumference

• A part of the circle's perimeter

What is the difference between a secant and a tangent?

• A tangent is the longest chord, while a secant is not

• There is no difference

• A secant passes through the circle, while a tangent touches at one point

• A secant is a part of the circumference, while a tangent is not

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Name the pictured part of the circle.

• Center

• Sector

• Radius

• Central Angle

• Arc

What is this called?

• Tangent Line

• Secant

• Chord

• Diameter