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Slide Notes

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Geometry Unit 5

Published on Nov 24, 2015

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PRESENTATION OUTLINE

CIRCLE

  • 1. a round plane figure whose boundary consists of points equidistant from a fixed point
  • We ran circles around the other runners
Photo by YannGarPhoto

RADIUS

  • a straight line from the center to the circumference of a circle or sphere.
  • The radius from me to the wall is six
Photo by bijoubaby

DIAMETER

  • a straight line passing from side to side through the center of a body or figure, esp. a circle or sphere.
  • The diameter of the table is 4 feet
Photo by taratara69

CENTRAL ANGLE

  • Arc between two angles

SEMICIRCLE

  • Half a circle
  • A canoe is a half a circle/oval

CIRCUMFRENCE

  • the enclosing boundary of a curved geometric figure, esp. a circle.
Photo by heraldpost

ARC LENGTH

  • The distance along the curved line making up the arc
  • The arc length of the circular patio is 57 degrees
Photo by Ash Lourey

SECTOR OF A CIRCLE

  • The part of a circle enclosed by two radii of a circle and their intercepted arc. A pie-shaped part of a circle.
Photo by familymwr

SEGMENT OF A CIRCLE

  • The region between a chord of a circle and its associated arc.
Photo by familymwr

TANGENT OF A CIRCLE

  • A line that contacts an arc or circle at only one point.

POINT OF TRANGENCY

  • point where a tangent line touches a circle.

CHORD

  • A straight line connecting two points on a curve.
Photo by Jin_sama

SECANT

  • the ratio of the hypotenuse to the shorter side adjacent to an acute angle (in a right-angled triangle); the reciprocal of a cosine.