Points, Lines, Segments, Rays, Angles, Polygons and Circles

Congruent Angles

• a segment whose endpoints lie on a circle

• angles that have the same measure

• You represent a plane with a four sided figure and by placing a script letter inside.

• a polygon with twelve sides

Angle Bisector

• a ray that contains the vertex of an angle and divides the angle into two congruent angles

• a polygon with eleven sides

• part of a line that is bounded by two end points

• a polygon with nine sides

Right angle

• unit for measuring angles

• a polygon with four sides

• an angle whose measure is 90º

• (3) pairs of angles, segments, or polygons are congruent - they must be marked with congruency symbols, which show that they're congruent

Obtuse angle

• A statement that clarifies or explains the meaning of a word or a phrase.

• a ray that contains the vertex of an angle and divides the angle into two congruent angles

• (3) points on a line are collinear and all points shown on a diagram are coplanar.

• an angle whose measure is greater than 90º but less than 180º (between 90 and 180º)

Vertical angles

• a segment whose endpoints lie on a circle

• (2) If two lines intersect, they intersect at one point.

• two angles that are formed by intersecting lines. The angles share a vertex, but not a common side.

• a polygon with eleven sides

Triangle

• A line segment with one endpoint at the center of a circle and the other endpoint on the circle

• a polygon with three sides.

• a polygon where all the angles have the same measure

• an arc that is larger than a semicircle

Pentagon

• a quadrilateral whose opposite sides are parallel

• unit for measuring angles

• having the same value

• a polygon with five sides

Heptagon

• a parallelogram that is equiangular

• a polygon with seven sides

• having the same size and shape

• A figure that is formed by the set of all points in a plane at a given distance from a given point in the plane.