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Download 6.4 Inscribed Angles
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Theorem 10.10 ⢠If a right triangle is inscribed in a circle, then the hypotenuse is a diameter of the circle. Conversely, if one side of an inscribed triangle is a diameter of the circle, then the triangle is a right triangle and the angle opposite the diameter is the right angle. ⢠ïB is a right angle if and only if AC is a diameter of the circle. A B C