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### 29 Cards in this Set

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 segment two points on a line and all the points between them points the simplist figure in geometry. representing an exact location angle a figure formed by two roys with the same endpoint acute angle angle with measurements less than 90 degrees endpoint the point at the end of the ray or line segment the ends oa a diameter dicide the circle into two ___________. semicircles chord a segment joining two points on the circle circle the set of all points in a plane at a given distance from a given point O called the center How do you name an angle? -by giving its vertex angle or -by listing letters for points on the two sides with the vertex letter in the middle parallel lines lines 1) in the same plane 2) that do not intersect non collinear points not on the same line complimentary angles whose measures have a sum of 90 degrees collinear two or more points on the same line congruent figures figures that have the same size and shape sides the fays making up an angle radius a segment joining the center of a circle to a point on the circle parallel planes planes that do not intersect a square cm is a square which is _____________ wide and _____________ long one cm one cm right angle a 90 degree angle (the angle formed by perpendicular lines) supplementary angles two angles whos measures have a fum of 90 degrees ray a part of the line with the endpoint plane a flat surface extending in all directions perpendicular lines two angles that intersect to form a 90 degrees line 1) a figure determined by 2 points 2) extending in both directions a chord passing through the center is called the __________ of the circle diameter skew lines lines that are not parallel and do not intersect midpoint the point on a line segment that divides it into two segments of equal length vertex the common endpointof an angle obtuse angle angle with measurements greater than 90 degrees