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Geometry Final - Geometry Words Flashcards

all 50 geometry words.

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400227754vertex anglethe angle between two sides of an isosceles triangle0
400227755trapezoida quadrilateral with exactly one pair or parallel sides1
400227756tangent to a circlea line, segment, or ray that touches a circle at exactly one point2
400227757tangent ratioopposite/adjacent3
400227758squarea parallelogram with four congruent sides and four right angles4
400227759sine ratioopposite/hypotenuse5
400227760similar polygonshave corresponding angles and congruent and corresponding sides in proportion6
400227761semicirclea half of a circle7
400227762secanta line, ray, or segment that intersects a circle in two points8
400227763rhombusa parallelogram with four congruent sides9
400227764rectanglea parallelogram with four right angles10
400227765ratiothe composition of two quantities by division11
400227766radius of a circlea segment with an endpoint as the center and the other lying on the circle12
400227767Pythagorean triplea set of three whole numbers that satisfy the equation a2+b2=c213
400227768proportionsegment that two ratios are equal14
400227769proofa convincing argument using two columns with statements and reasons15
400227770parallelograma quadrilateral with two pairs of parallel sides16
400227771minor arcan arc smaller than a semi-circle17
400227772midsegment of a trianglesegment that joins the midpoints of the sides of a three sided figure18
400227773midsegment of a trapezoidsegment that joins midpoints of the legs of a trapezoid19
400227774measure of a triangleconnects a vertex to the midpoint of the opposite side of a triangle20
400227775measure of an arcthe same as the measure of its central angle21
400227776legthe two congruent sides of an isosceles triangle22
400227777minor arcan arc larger than a semicircle23
400227778kitea quadrilateral with two pairs of congruent adjacent sides and no opposite sides congruent24
400227779isosceles trapezoida trapezoid with congruent legs (nonparallel sides)25
400227780intercepted arcan arc cut off by an inscribed angle26
400227781inscribed anglean angle whose vertex lies on the circle and the sides are chords of the circle27
400227782cosine ratioadjacent/hypotenuse28
400227783CPCTCcorresponding parts of congruent triangles are congruent29
400227784distance from a point to a linelength of the perpendicular segment from a point to a line30
400227785diameter of a circlea segments going through the center of the circle = to two radii31
400227786inscribed inhappens to a circle when the sides of a polygon are tangent to the circle32
400227787cross-product propertyproduct of the means = product of the extremes33
400227788hypotenusethe side opposite the right angle in a right triangle34
400227789corollarya statements that follows directly from a theorem35
400227790consecutive anglesin a polygon, they share a common side and are one after the other36
400227791congruent circlescircle with congruent radii37
400227792congruent arcsarc in the same circle or congruent circles that have the same measure38
400227793concentric circleslie in the same plane and have the same center (a dart board)39
400227794circumscribed abouthappens to a circle when the vertices of a polygon lie on the circle40
400227795circumferencethe distance around a circle41
400227796circlethe set of all points that are a given distance from a center point42
400227797central angle of a circlean angle whose vertex is the center of the circle43
400227798chorda segment whose endpoints lie on the circle44
400227799base anglesthe two congruent angles of an isosceles triangle45
400227800adjacent arcsareas on the same circle connecting with one point46
400227801altitude of a trianglea perpendicular segment from a vertex to the opposite side47
400227802arc lengtha fraction of a circle's circumference48
400227803angle of elevation or depressionan angle formed by a horizontal line and the line of sight to an object above the horizontal line49

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