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# vocab

TermDefinition
Acute Angle with measure between 0* and 90*
Acute triangle has 3 acute angles
Angle is formed by 2 ray with a common end point called a vertex
Center of rotation is a fixed point about which a figure is rotated
Complementary angles are an
Acute Angle with measure between 0* and 90*
Acute triangle has 3 acute angles
Angle is formed by 2 ray with a common end point called a vertex
Center of rotation is a fixed point about which a figure is rotated
Complementary angles are angles that have the same measure
congruent angles are angles that have the same measure
congruent figures are figures with the same size and shape
congruent segments segment that have the same length
degrees Angles are measured in units
Equilateral Triangle us a triangle with 3 congruent sides.
Image is the result of a transformation of a point, line, or figure
Intersecting Lines lie in the same plane and have one point in common.
Irregular Polygon Is a polygon with sides that are not all congruent and/or angles that are not all congruent.
Isosceles Triangle Is a triangle with at least two congruent sides
Line Is a series of points that extends in two opposite directions without end
Line Of Reflection is a line over which a figure is reflected
Line Of Symmetry Divides a figure into mirror images
Line Symmetry When one side is the mirror image of the other side
Obtuse Angle Is an angle with a measure greater than 90 and less than 180
Obtuse Triangle Is a triangle with one obtuse angle
Parallel Line Are lines in the same plane that never intersect
Parallelogram Is a quadrilateral with both pair of opposite parallel.
Perpendicular Line intersect to from right angles
Plane Is a flat surface with no thickness that extends without end in all directions on the surface
Point Is a location that has no size
Polygon Is a closed figure formed by three or more line segments that do not cross
Quadrilateral Is a polygon with four sides
Ray Is a part of a line
Rectangle is a parallelogram with right angles
Reflection Is a transformation that flips a figure over a line of reflection
Regular Polygon Is a polygon with all sides congruent and all angles congruent.
Rhombus Is a parallelogram with 4 congruent sides
Right Angle Is an angle with a measure of 90
Right Triangle Is a triangle with one right angle
Rotation Is a transformation that turns a figure about a fixed point called the center of rotation
Scalene triangle Is a triangle with no congruent sides
Segment Is part of a line
Similar Figures if their corresponding angles have the same measure and the lengths of their corresponding sides are proportional
Skew Lines Are neither parallel nor intersecting
Square Is a parallelogram with 4 right angles and 4 congruent sides
Straight Angle Is an angle with a measure of 108
Supplementary Angle 2 angle supplemen
Created by: ga