Chapter 3 vocabulary Flashcards
Coordinate of a point on a line
The number that corresponds to the point
Equivalence relation
A relation that is reflexive symmetric and transitive
What is the distance between two points
The distance between two points A and B is absolute value of the difference of their coordinates Distance between points A and B is denoted by AB given by AB = |a-b|
What is between
A point Mis between A and B if AM + MB = AB the correct notation is A-M-B
What is the midpoint
The mid point of AB is M if A-M-B and AM=MB
Bisector of a segment
A cube that intersects the segment only at the midpoint
Congruent segments
The segments that,have the same length
Perimeter
The distance around a closed curve
Circumference
The distance around a circle
Inscribed polygon
A polygon whose vertices are points of a circle
Inscribed angle
An angle whose vertex is on a circle and whose sides each contain another point of the circle
Polygon circumscribed about a circle
A polygon whose sides each intersect the circle in exactly one point
Tangent line
A line in the plane of a circle that intersects the circle in exactly one point
The point of tangency
The point at which a tangent line and a circle intersect
Tangent segment
A segment of a tangent line that contains the,point of tangency
