a set of points equidistant from a central point€¦ · 9.1 notes.notebook 2 may 15, 2017
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9.1 Notes.notebook
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a set of points equidistant from a central point
the segment from the center of a circle to any point on the circle.
edge to edge through the center
the central point that is equidistant from every point on the circle
a segment whose endpoints are on the circle
an unbroken part of a circle, part of the circumference
named with endpoints and 1 other letter on the arc
a 180 degree arc
half a circle made with a chord of the diameter.
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endpoints of the angle are on the circle and the vertex is at the center of the circle
measured in degrees is how OPEN an arc is.
same measure as a central angle
an arc that is less than 180 degrees
only described with endpoints
an arc that is more than 180 degrees
described with endpoints and 1 other letter on the arc
measure of how LONG an arc is in units (cm, in, m, yd....)
*Not the same as the arc measure
***Degree measures of all arcs in a circle will add to = 360
***Arc lengths add to = the circumference of the circle
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