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8 Cards in this Set

  • Front
  • Back
a circle
that (locus) location of all points in a plane equidistant from a given point called the center. We name a circle by its center pt.
chord
any segment with both endpoints ON the circle
diameter
a chord that passes through the center of the circle
radius
any segment with endpoints that are the center of the circle and a point on the circle
What is the formula for finding circumference?
C= 2rPi or 2Pir OR C=dPi
minor arc
an arc that measures less than 180 degrees. Its measure = the measure of its central angle
major arc
an arc that measures greater than 180 degrees. its measure = 360-measure of its minor arc
semicircle
and arc that measures 180 degrees. its measure =180.