PI Day's Crossword Puzzle

Set of all points in a plane that are equidistant fron a point.
Coplanar circles that intersect in one point.
Segment whose endpoints are the center and any point on a circle.
Segment whose endpoints are on a circle.
Chord that contains the center of the circle.
line that intersects a circle in tow points
line in the plane of a circle that intersect the circle in exactly one point.
Point where the tangent intersects the circle.
Coplanar circles that have a common center.
A mathematical constant commonly approximated as 3.14159.
An angle whose vertex is the center of the circle.
It is an arc with endpoints that are the enpoints of a diameter.
Two arcs of the same circle that intersect at exactly one point.
An angle whose vertex is on a circle and whose sides contain chords of the circle.
An arc that lies between two lines, rays, or segments.
A polygon when all its vertices lie on a circle.
The circle that contains the vertices.
Angle whose sides are tangent to a circle.
Segment that is tangent to a circle at an endpoint.
Segment that contains a chord of a circle and has exactly one
The part of a secant segment that is outside the circle.
When two chords intersect in the intirior of a circle and each chord is divide in segments.
It is a closed curve or circular object is the linear distance around its edge.
Real number that can't be expressed as a ratio of integers as a fraction.
Mathematician who used Pi symbol for first time to represent the platonic concept.