Complete the following theorem statements.
1. The exterior angle of a cyclic quad is equal to .
2. Two tangents from a point outside a circle are ...
3. Angles subtended by the same chord are ...
4. The perpendicular bisector of a chord passes through the ...
1. The exterior angle of a cyclic quad is equal to the interior opposite angle.
2. Two tangents from a point outside a circle are congruent in length.
3. Angles subtended by the same chord are equal.
4. The perpendicular bisector of a chord passes through the center of the circle.