Term

Definition
two figures have the same shape and size 


Term

Definition
two figures have the same shape 


Term
line symmetry/ reflection symmetry 

Definition
if a figure can be divided into two identical parts, there can be more than one line of symmetry 


Term

Definition
bisects a line segment into two shorter segments of equal length 


Term

Definition
onedimensional system n which points hav a single cordinate 


Term

Definition
twodimensional system in which points have two coordinates 


Term

Definition
m, rise/ run= y2 y1/ x2 x1 


Term

Definition
coplanar lines that do not intersect 


Term

Definition
if the two slopes' product is equl to 1 


Term

Definition
the length around a figure 


Term

Definition
the amount of area in an figure 


Term

Definition
if two angles share a common vertex and side, but have no common interior points 


Term

Definition
is a segment, ray, line, or plane that intersects a segment at its midsegment 


Term

Definition
a ray that divides the angle into two congruent angles 


Term

Definition


Term

Definition
the "if" in the if then statement 


Term

Definition
the "then" in the if then statement 


Term

Definition
interchanging the hypothesis and the conclusion of a conditional statement 


Term

Definition
the hypothesis is true and the conclusion is not 


Term

Definition
if the statement is equivalent to the conditional statement and the converse, using "if and only if" 


Term

Definition


Term

Definition


Term

Definition


Term

Definition
if a= b and c doesn't =0, then a/ c= b/c 


Term

Definition


Term

Definition


Term

Definition
if a= b and b= c, then a=c 


Term

Definition
if a= b, then a may be substituted for b in an equation or and expression 


Term
reflexive property of congruence 

Definition
any geometric object is congruent to itself 


Term
symmetric property of congruence 

Definition
if one geometric object is congruent to a second, and the second object is congruent to the first 


Term
trnsitive property of congruence 

Definition
if one geometric object is congruent to a second, and the second object is congruent to a third, then the first object is congruent to the third object 


Term

Definition
if two angles' sides form two pairs of opposite rays 


Term

Definition
if two adjacent angles' noncommon sides are opposite rays 


Term

Definition
if two angles' sum of their measures is 90 degrees 


Term

Definition
if two angles' sum of measures is 180 degrees 


Term

Definition
are coplanar and have exactly one point in common 


Term

Definition
intersecting lines meeting at a right angle, they are perpendicular 


Term

Definition
two lines that do not lie in the same plane 


Term

Definition
the hypothesis and the conclusion both become negative 


Term

Definition
the negation of the converse 


Term

Definition
a line that intersects two or more coplanar lines at different points 


Term

Definition
a quantity that has both magnitude and a diretion 


Term

Definition
has three congruent sides 


Term

Definition
has two or more congruent sides 


Term

Definition


Term

Definition


Term

Definition
if all angles of an acute triangle are congruent 


Term

Definition
has exactly one right angle 


Term

Definition
has exactly one on=btuse angle 


Term

Definition
the sides of the traingle that form the right angle 


Term
hypotenuse of a right angle 

Definition
the side opposite the right angle 


Term
legs of an isosceles triangle 

Definition


Term
base of an isosceles triangle 

Definition
the third side of the triangle that isn't congruent to the other two sides 


Term

Definition
 ASA  SAS  SSS  AAS
not  AAA  SAA 


Term

Definition
corresponding parts of congruent triangles are congruent 


Term
perpendicular bisector of a triangle 

Definition
a segment that bisects one side of the triangle 


Term
angle bisector of a triangle 

Definition
a segment that bisects one of the angles of the triangle 


Term

Definition
a segment whose endpoints are a vertex and the midpoint of the other side 


Term

Definition
a segment from a vertex that is perpendicular to the opposite side or to the line containing the opposite side 


Term

Definition
the concurrent point of perpendicular bisectors, equidisdant from all the vertices 


Term

Definition
concurrent point of the angle bisectors, equidistant from the three sides of the triangle 


Term

Definition
concurrent point of the medians, two thirds of the distance from each vertex to the midpoint of the opposite side 


Term

Definition
concurrent point of the altitudes 


Term

Definition
connects the midpoints of two sides of a triangle 


Term

Definition
a plane figure that is formed by three or more segments called sides 


Term

Definition
if no line that contains a side of the polygon contains a point in the interior of the polygon 


Term

Definition


Term

Definition
a segment that joins two nonconsecutive vertices 


Term

Definition
if a polygon is equilateral and equiangular 


Term

Definition
quadrilateral with two pairs of parallel opposite sides 


Term

Definition
a parallelogram that has all four sides congruent 


Term

Definition
a parallelogram that has four right angles 


Term

Definition
a parallelogram that is both a rectangle and a rhombus 


Term

Definition
a quadrilateral that has exactly one pair of opposite sides that are parallel 


Term

Definition
the legs of the trapezoid are congruent 


Term

Definition
a quadrilateral that has two pairs of consecutive congruent sides, but opposite sides are not congruent 

