Geometry Crossword Puzzle: Circles

Area that is between two radii. It is an arc of a circle.
It is formed by two rays. They share the same vertex.
A line that touches one point of a circle. It is outside of the circle
Chord that intersects the center of a circle. It is double the size of a radius.
An arc that is greater than 180°. It is on the circumference of a circle.
An arc that is less than 180°. Also is part of circumference.
Points that are the same distance away from each other. It has a diameter and radius.
A portion of a circumference. It is the connected section of two points.
It has an angle of 180°. It is half of a circle.
Vertex is on a point of circle. The sides contain chords.
Angle that has a vertex in the center of a circle. Two radii meet to form this.
It connects two points on a circle. It is not in the center.
It has a border of a chord. It contributes to circumference.
A segment from a point to a center of a circle. It is half of diameter.
It is the distance around the circle. The perimeter of a circle.
Circles that have the same radius. They have the same size.
Circles that lie on the same plain. They share the same center.
A fractional distance of the circumference. It is defined by the arc.
Both halves match exactly. It is also called reflection symmetry.
It is the circumference of a circle divided by diameter. It is approximately 3.14.