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Inscribed Angle


The Angle with Vertex on a Circle's Circumference formed by two points on a Circle's Circumference. For Angles with the same endpoints,


where $\theta_c$ is the Central Angle.

See also Central Angle


Pedoe, D. Circles: A Mathematical View, rev. ed. Washington, DC: Math. Assoc. Amer., pp. xxi-xxii, 1995.

© 1996-9 Eric W. Weisstein