Chord A segment whose endpoints lie on the circle Circle The set of all points in a plane at a given distance from a given point Circumference The perimeter of a circle, which is the distance around a circle Circumscribed (about a circle) Having all sides tangent to the circle Circumscribed (about a polygon) Each vertex of the polygon lines on the circle Complementary angles Two angles (adjacent or nonadjacent) whose sum is 90 degrees Conditional statements A statement that can be expressed in ‘if-then’ form Cone A three dimensional figure with one circular base and a vertex Congruent Identical in shape and size (angles, line segments, circles or polygons) Contrapositive The statement formed by exchanging and negating the hypothesis and conclusion of a conditional statement Converse The statement formed by exchanging the hypothesis and conclustion of a conditional statement Corresponding (side or angle) A side (or angle) of a polygon that is in the same position as a side (or angle) of a congrent or similar polygon Corresponding angles Two angles formed by a transversal intersecting two lines that lie in the same position relative to the two lines and the transversal
Chord A segment whose endpoints lie on the circle Circle The set of all points in a plane at a given distance from a given point Circumference The perimeter of a circle, which is the distance around a circle Circumscribed (about a circle) Having all sides tangent to the circle Circumscribed (about a polygon) Each vertex of the polygon lines on the circle Complementary angles Two angles (adjacent or nonadjacent) whose sum is 90 degrees Conditional statements A statement that can be expressed in ‘if-then’ form Cone A three dimensional figure with one circular base and a vertex Congruent Identical in shape and size (angles, line segments, circles or polygons) Contrapositive The statement formed by exchanging and negating the hypothesis and conclusion of a conditional statement Converse The statement formed by exchanging the hypothesis and conclustion of a conditional statement Corresponding (side or angle) A side (or angle) of a polygon that is in the same position as a side (or angle) of a congrent or similar polygon Corresponding angles Two angles formed by a transversal intersecting two lines that lie in the same position relative to the two lines and the transversal