Circles

• What is a chord?

  segment whose endpoints are 2 points on the circle
• What is Radius?

  Segment whose endpoint are center and the points on the circle
• What is diameter?

  a chord that passes through the center
• A tangent is a line that?

  Touches the circle at exactly one point
• Secant is a line that ?


  Crosses the circle at exactly 2 points
• 2 radii and whose vertex is the center of the circle?

  Central Angle
• Inscribed angle?

  An angle formed by two chords in a circle and the vertex of an angle is on the circle
• Minor arc?


  Is less than the measure of semi circle
• Major arc?

  Greater than the measure of semi circle
• Semi circle?

  Half of a circle.Formed by cutting the circle into two equal parts