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Circle Geometry Conjecture: a mathematical statement that appears likely to be true, based on your observations, but has not been proven
Conjectures about ARCs & ANGLES…The measure of a central angle equals the measure of its corresponding minor arc
Conjectures about ARCs & ANGLES…The measure of a central angle is 360o minus the measure of the major arc with the same endpoints as the central angle
Conjectures about ARCs & ANGLES…The measure of an inscribed angle in a circle equals half of the measurement of the arc it intercepts (or the central angle) central angle inscribed angle
Conjectures about ARCs & ANGLES…All inscribed angles that intercept the same arc will have the same measurement arc CB
Conjectures about ARCs & ANGLES…If an inscribed angle intercepts a semicircle, then it has a measure of 90o
ARCS AND CENTRAL ANGLES
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