Vocabulary Unit 10 Flashcards
Tangent
a line that intersects a circle in exactly one point
Inscribed
a polygon with all of its vertices on the circle
Central Angle
an angle with a vertex that is at the center of a circle
Chord
a segment that has its endpoints on the circle
Secant
a line that intersects a circle in exactly two points
Circumfrence
the distance around a circle
Diameter
a chord that passes through the center of a circle
Pi/π
an irrational number that is the ratio of C/d
Major Arc
an arc that measures greater than 180º
Point of Tangency
a point where a circle meeets a tangent
Circle
locus of all points in a plane equdistant from a given point
Arc
a central angle seperarates the circle into two of these