Geometry 2Geometry 2ndnd SemesterSemester

Vocabulary ReviewVocabulary Review

1.1. An arc with a measure An arc with a measure greater than 180.greater than 180.

Major arcMajor arc

2.2. For a given circle, a segment For a given circle, a segment with endpoints that are on the with endpoints that are on the circle.circle.

chordchord

3.3. Lines that do not intersect Lines that do not intersect and are not coplanar.and are not coplanar.

Skew linesSkew lines

4.4. An angle with a degree An angle with a degree measure less than 90.measure less than 90.

Acute angleAcute angle

5.5. Points that lie on the same line.Points that lie on the same line.CollinearCollinear

6.6. A measurable part of a line that A measurable part of a line that consists of two points, called consists of two points, called endpoints, and all of the points endpoints, and all of the points between them.between them.

Line segmentLine segment

7.7. A triangle with all angles congruent.A triangle with all angles congruent.Equiangular triangleEquiangular triangle

8.8. A triangle with no two sides congruent.A triangle with no two sides congruent.Scalene Scalene

9.9. Two polygons are _____ if and Two polygons are _____ if and only if their corresponding angles only if their corresponding angles are congruent and the measures are congruent and the measures of their corresponding sides are of their corresponding sides are proportional.proportional.

Similar Similar

10.10.A triangle in which all of the A triangle in which all of the angles have degree measures angles have degree measures less than 90less than 90..

Acute triangleAcute triangle

11.11.For an acute angle of a right For an acute angle of a right triangle, the ratio of the measure triangle, the ratio of the measure of the leg opposite the acute of the leg opposite the acute angle to the measure of the leg angle to the measure of the leg adjacent to the acute angle.adjacent to the acute angle.

Tangent Tangent

12.12. A triangle with an angle that has a A triangle with an angle that has a degree measure of 90.degree measure of 90.

Right triangleRight triangle

13.13. An arc with a measure less than 180An arc with a measure less than 180Minor arcMinor arc

14.14.The locus of all points in a plane The locus of all points in a plane equidistant from a given point equidistant from a given point called the center.called the center.

Circle Circle

15.15.Two nonadjacent angles formed Two nonadjacent angles formed by two intersecting lines.by two intersecting lines.

Vertical anglesVertical angles

16.16.In a polygon, a segment that In a polygon, a segment that connects nonconsecutive vertices connects nonconsecutive vertices of the polygon.of the polygon.

Diagonal Diagonal

17.17. A triangle in which one angle has a A triangle in which one angle has a degree measure greater than 90 and degree measure greater than 90 and less than 180.less than 180.

Obtuse triangleObtuse triangle

18.18.In a circle, any segment with In a circle, any segment with endpoints that are the center of endpoints that are the center of the circle and a point on the circle.the circle and a point on the circle.

Radius Radius

19.19.An equation that states two ratios An equation that states two ratios is equal.is equal.

Proportion Proportion

20.20.A quadrilateral with all four sides A quadrilateral with all four sides congruent.congruent.

Rhombus Rhombus

21.21.In a trapezoid, the segment that In a trapezoid, the segment that joins the midpoints of the legs.joins the midpoints of the legs.

Median Median

22.22.A point is in the _____ of the A point is in the _____ of the angle if it does not lie on the angle angle if it does not lie on the angle itself or on a segment with itself or on a segment with endpoints that are on the sides of endpoints that are on the sides of the angle.the angle.

Interior pointsInterior points

23.23.Points that lie in the same plane.Points that lie in the same plane.Coplanar Coplanar

24.24.A trapezoid in which the legs are A trapezoid in which the legs are congruent, both pairs of base congruent, both pairs of base angles are congruent, and the angles are congruent, and the diagonals are congruent.diagonals are congruent.

Isosceles trapezoidIsosceles trapezoid

25.25.An arc that measures 180.An arc that measures 180.Semicircle Semicircle

26.26.In a triangle, a line, segment, or In a triangle, a line, segment, or ray that passes through the ray that passes through the midpoint of side and is midpoint of side and is perpendicular to that side.perpendicular to that side.

Perpendicular bisectorPerpendicular bisector

27.27.A quadrilateral with four right A quadrilateral with four right anglesangles..

Rectangle Rectangle

28.28.Two angles with measures that Two angles with measures that have a sum of 90.have a sum of 90.

Complementary anglesComplementary angles

29.29.The sum of the lengths of the The sum of the lengths of the sides of a polygon.sides of a polygon.

Perimeter Perimeter

30.30. In a triangle, a segment from a vertex In a triangle, a segment from a vertex of the triangle to the line containing the of the triangle to the line containing the opposite side and perpendicular to opposite side and perpendicular to that side.that side.

Altitude Altitude

31.31. For a line that intersects a circle in For a line that intersects a circle in only one point, the point at which they only one point, the point at which they intersect.intersect.

Point of tangencyPoint of tangency

32.32. A part of a circle that is defined by two A part of a circle that is defined by two endpoints.endpoints.

ArcArc

33.33.An angle that intersects a circle in An angle that intersects a circle in two points and has its vertex at two points and has its vertex at the center of the circle.the center of the circle.

Central angleCentral angle

34.34.A pair of adjacent angles whose A pair of adjacent angles whose noncommon sides are opposite noncommon sides are opposite rays.rays.

Linear pairLinear pair

35.35.A quadrilateral with parallel A quadrilateral with parallel opposite sides.opposite sides.

Parallelogram Parallelogram

36.36.A quadrilateral with four right A quadrilateral with four right angles and four congruent sides.angles and four congruent sides.

Square Square

37.37.A convex polygon in which all of A convex polygon in which all of the sides are congruent and all of the sides are congruent and all of the angles are congruent.the angles are congruent.

Regular polygonRegular polygon

38.38.For an acute angle of right For an acute angle of right triangle, the ratio of the measure triangle, the ratio of the measure of the leg opposite the acute of the leg opposite the acute angle to the measure of the angle to the measure of the hypotenuse.hypotenuse.

SineSine

39.39.Lines that form right angles.Lines that form right angles.Perpendicular linesPerpendicular lines

40.40.Two angles with measures that Two angles with measures that have sum of 180.have sum of 180.

Supplementary anglesSupplementary angles

41.41.A triangle with all sides congruent.A triangle with all sides congruent.Equilateral triangleEquilateral triangle

42.42.Two angles that lie in the same Two angles that lie in the same plane have common vertex and a plane have common vertex and a common side, but no common common side, but no common interior pointsinterior points..

Adjacent anglesAdjacent angles

43.43.Any line that intersects a circle in Any line that intersects a circle in exactly two points.exactly two points.

Secant lineSecant line

44.44.Coplanar lines that do not Coplanar lines that do not intersect.intersect.

Parallel linesParallel lines

45.45.In a circle, a chord that passes In a circle, a chord that passes through the center of the circle.through the center of the circle.

Diameter Diameter

46.46.A quadrilateral with exactly one A quadrilateral with exactly one pair of parallel sides.pair of parallel sides.

Trapezoid Trapezoid

47.47.The distance around the circle.The distance around the circle.Circumference Circumference

48.48.A line that intersects two or more A line that intersects two or more lines in a plane at different points.lines in a plane at different points.

Transversal Transversal

49.49.A ray that divides an angle into A ray that divides an angle into two congruent angles. two congruent angles.

Angle bisectorAngle bisector

50.50.For an acute angle of a right For an acute angle of a right triangle, the ratio of the measure triangle, the ratio of the measure of the leg adjacent to the acute of the leg adjacent to the acute angle to the measure of the angle to the measure of the hypotenuse.hypotenuse.

Cosine Cosine