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ARCS AND CENTRAL ANGLESArc and arc measure Minor Arc Major Arc Semicircle Adjacent arcs
VERTEX OF THE CENTRAL ANGLE IS THE CENTER OF THE CIRCLECentral Angles Circle B, Angle ABC A VERTEX OF THE CENTRAL ANGLE IS THE CENTER OF THE CIRCLE C B
ARCS AND ARC MEASURE Arc AC and Central Angle ABCArc: part of a circle Arcs and central angles are measured in degrees A Arc AC and Central Angle ABC have the same measure C B
MORE ABOUT ARCS Semicircle: arc PSR measure of exactly 180Minor Arc: arc AC measures less than 180 Major Arc: arc DEF measures greater than 180 F C A D T . E B Semicircle: arc PSR measure of exactly 180 . . S Q . P R
Adjacent arcs share a common endpoint m arc AD + m arc DP equals m arc AP D A P G
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