

Chord, Tangent and the CircleThe Intersection of a Tangent and ChordThis page: Theorem : angle formed by a chord & a tangent Related Pages: Circles forumula, graph, equations  Equation of A Circle  Circumference  Area  Chord  Tangent Arc of A Circle  Intersecting Chords Inscribed Angle Secant of circle  2 Tangents from 1 point Central Angle  Angles, Arc, Secants, tangents Tangents, Secants and Side Lengths  Tangent and a Chord  images Free Math Printable Worksheets: Circles Worksheets and Activites for Math Teachers
For (the measure of arc ABC) to equal ¾ the total measure of the circle's circumference, what must be the value of X ?
¾( 360°)=270° By our theorem, we know that the angle formed by a tangent and a chord must equal half of the intercepted arc so X=½(270° )=135°
Look at Circle 1 and Circlce 2 below. In only one of the two circles does a tangent interesect with a chord. Which circle is it?
