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mathh vocabularyy

QuestionAnswer
Acute Angle an angle with a measure between 0 and 90 degrees
Acute Triangle has three acute angles
Adjacent Angles share a vertex and a side but have no interior points in common
Angle is formed by two rays with a common end point called vertex
Angle Bisector a ray that divides an angle into angles of equal measure
Arc a part of a circle
Central Angle an angle whose vertex is the center of a circle the sum is 360 degrees
Chord is a segment that has both end points on the circle
Circle is the set of points in a plane that are all the same distance from a given point called the center
Circle Graph a graph of data where the entire circle represents the whole
Compass geometric tool used to draw circles or arcs
Complementary two angles are complementaryif the sum of their measures is 90 degrees
Congruent Angles angles that have the same measure
Congruent Polygons two polygons are congruent if they have exactly the same shape and size
Congruent Sides have the same lengths
Decagon polygon with 10 sides
Diameter a segment that passes through the center of a circle and has both end points on the circle
Equilateral Triangle is a triangle with three congruent sides
Hexagon polygon with 6 sides
Irregular Polygon is a polygon with sides that are not all congruent and/or angles that are not all congruent
Isosceles Triangle is a triangle with at least two congruent sides
Line is a series of points that extends in two opposite directions without end
Midpoint is the point that divides the segment into two segment of equal length
Obtuse Angle is an angle with a measure greater than 90 and less than 180 degrees
Obtuse Triangle is a triangle with one obtuse angle
Octagon polygon with 8 sides
Parallel Lines are lines in the same plane that never intersect
Parallelogram is a quadilateral with both pairs of opposite sides parallel
Pentagon polygon has 5 sides
Perpendicular Bisector is a segment bisector that is perpendicular to the segment
Perpendicular Lines intersect to form right angles
Plane is a flat surface that extends indefinitely in all directions
Point is a location that has no size
Polygon is a close figure formed by three or more line segments that do not cross
Quadrilateral is a polygon with four sides
Radius is a segment that connects the center of a circle
Ray has one endpoint and all the points of the line on one side of the point
Rectangle is a parllelogram with four right angles
Regular Polygon is a polygon with all the sides congruent and all the angles congruent
Rhombus a parallelogram with four sides
Right Angle is an angle with a measure of 90 degrees
Right Triangle is a triangle with one right angle
Scalene Triangle is a triangle with no congruent sides
Segment has two endpoints and all the points of the line between the endpoints
Segment Bisector is a line, segment or ray that goes through the midpoint of a segment
Skew Lines lie in different planes they are neither parallel nor intersecting
Straight Angle is an angle with a measure of 180 degrees
Square is a parallelorgram with four right angles and four congruent sides
Supplementary Angle two angles whose measures add up to 180 degrees
Trapezoid is a quadrilateral with exactly one pair of lines
Popular Math sets

 

 



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