Circling Around the Basics

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Questions and Answers

What is a circle?

  • A triangle with all points an equal distance from the center.
  • A closed curve with all points an equal distance from the center. (correct)
  • A rectangle with all points an equal distance from the center.
  • A square with all points an equal distance from the center.

What is the definition of a circle?

  • An open curve with all points an equal distance from the edge
  • An open curve with all points an equal distance from the center.
  • A closed curve with all points an equal distance from the center. (correct)
  • A closed curve with all points an equal distance from the edge

What is the center of a circle?

  • A point on the circumference of the circle
  • The middle point of the circle (correct)
  • A line segment that connects two points on the circle
  • A point inside the circle

What is the definition of the center of a circle?

<p>The middle point of the circle (B)</p> Signup and view all the answers

How is a circle named?

<p>By its center. (A)</p> Signup and view all the answers

What is the relationship between a circle and its center?

<p>A circle is named after its center. (D)</p> Signup and view all the answers

What is a radius?

<p>The distance from the center to any point on the circle (C)</p> Signup and view all the answers

What is the definition of a radius?

<p>The distance from the center to any point on the circle (C)</p> Signup and view all the answers

What is a chord?

<p>A line segment that connects two points on the circumference of the circle (D)</p> Signup and view all the answers

What is the relationship between all radii of a circle?

<p>All radii have the same measure and are congruent. (B)</p> Signup and view all the answers

What is a diameter?

<p>A line segment that connects two points on the diameter of the circle (D)</p> Signup and view all the answers

What is the definition of a diameter?

<p>A line segment that connects two points on the circle and goes through the center. (C)</p> Signup and view all the answers

What is the relationship between diameter and radius?

<p>Diameter is twice the length of the radius. (B)</p> Signup and view all the answers

What is the relationship between a diameter and a circle?

<p>A diameter cuts a circle in half, creating two equal semicircles. (C)</p> Signup and view all the answers

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Study Notes

  • A circle is a closed curve with all points an equal distance from the center.
  • The center of a circle is the middle point.
  • A circle is named by its center.
  • Radius is the distance from the center to any point on the circle.
  • All radii have the same measure and are congruent.
  • A chord is a line segment that connects two points on the circle.
  • Diameter is a line segment that connects two points on the circle and goes through the center.
  • Diameter is twice the length of the radius.
  • A diameter cuts a circle in half, creating two equal semicircles.
  • The direction of a diameter doesn't matter as long as it connects two points on the circle and goes through the center.

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