This document discusses inscribed angles and their relationship to circles. It states that an inscribed angle is an angle whose vertex is on a circle and whose sides contain chords of the circle. It also notes that an inscribed angle measures half the degrees of its intercepted arc and that two inscribed angles intercepting the same arc together measure the full arc. Additionally, it mentions that if a right triangle is inscribed in a circle, its hypotenuse is the diameter of the circle and that a quadrilateral can be inscribed in a circle if and only if its opposite angles are supplementary.

1. Terms of Endearment
Inscribed Angles: 9.3

2. Inscribed Angle
• Angle whose vertex is on a circle
and whose sides contain chords of
the circle.
• Inscribed angles measure ½ the
degrees of their intercepted arc.
• If there are two inscribed angles that
intercept the same arc, the two
angles are together

3. Circles and Triangles
• If a right triangle is inscribed in a
circle, the hypotenuse is the
diameter of the circle.
• Quadrilaterals can be inscribed in a
circle if and only if the opposite
angles are supplementary.