lesson 12-3 Flashcards
1
Q
intersected arc
A
an arc with endpoints on the sides of an inscribed angle and its other points in the interior of the angle
2
Q
inscribed angle
A
angle whose vertex is on a circle and sides contain chords of the circle
3
Q
inscribed angle thm
A
measure of the angle = 1/2 measure of the arc
4
Q
inscribed angle thm corollary 1
A
two inscribed angles that intersect the same arc are congruent
5
Q
inscribed angle thm corollary 2
A
an angle inscribed in a semicircle is a right angle
6
Q
inscribed angle thm corollary 3
A
the opposite anlges of a quadrilateral inscribed in a circle are sup.
7
Q
thm 12-12
A
the measure of an angle formed by a tangent and a chord is half the measure of the intercepted arc
