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50 Cards in this Set

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 Corresponding Angles Congruent angles found when a transversal intersects two parallel lines bisect to devide a geometric shape into 2 concruent parts. side 1 ray of an angle. transversal A LINE THAT INTRSECTS 2 PARALLEL LINES. VERTICAL ANGLES OPPOITE CONGRUENT ANGLES FORMED BY INTRESECTING LINES. perpendicular lines lines that intersect to formright angles. congruent two geometric shapes having the same size and shapes. plane a flat surface. Alternate interior angles congruent angles formed by a transversal and parallel lines - on opposite sides of the transversal and outside the parallel lines. right angle an angle that measures exactly 90 degrees. Alternate exterior angles congruent angles formed by a transversal and parallel lines - on opposite sides of the transversal and outside the parallel lines straight angle an angle that measures exactly 180 degrees. vertex end point of an angle. line an infinite string of points. collinear on the same line. reflex angle angle that measures more then 180 degrees. obtuse angle measures more than 90 but less then 180 degrees. angle formed from 2 rays having the same end points. ray a line with one end point. geometry the study of the relaion ships of diffrent sets of points. acute angle an angle less than 90 degrees. non-collinear not on the same line. point a location in space. line segment a string of points between 2 certain end points. many sided closed figure with more than 2 sides polygon Triangle 3 sides a three sided closed plane figure whose sides are line segments and the sum of the three angles = 180 Triangle a triangle with three congruent sides equilateral triangle no sides congruent scalene triangle a triangle with only acute angles acute triangle a triangle with 1 obtuse angle obtuse triangle a triangle with 1 right angle right triangle a four sided closed polygon where the sum of all 4 angles = 360 quadilateral a quadrilateral with 4 congruent sides and 4 right angles square a quadrilateral with opposite sides parallel and congruent pallelogram a quadrilateral with opposite congruent sides and four right angles rectangle a quadrilateral having all sides congruent but the angles aren't equal to 90 rhombus a quadrilateral having two sides parallel trapezoid the distance around a closed plane figure perimeter total distance around a circle circumference a simple closed curve circle any line segment with one end point on the circle, the other the center of the circle diameter any line segment with one end point on the circle, the other the center of the circle radius any line segment that has both end points on the circle chord any part of the curve of a circle arc the measure of a region area the amount of space occupied by a solid figure volume any 2 angle whos sum is 90 complimentary angles any 2 angles whose sum is 180 supplementary angles any line segment passing through the center of a circle with both end points on the circle diameter