haney test #3 Flashcards
what is the equation for finding the sum of the interior angles of a polygon with n sides?
180(n-2)
What is the equation for finding the measure of each angle of a regular polygon with n sides
[180(n-2)]/n
what is the name of a three sided polygon
triangle
what is the name of a four sided polygon
quadrilateral
what is the name of a five sided polygon
pentagon
what is the name of a six sided polygon
hexagon
what is the name of a seven sided polygon
heptagon
what is the name of a eight sided polygon
octagon
what is the name of a nine sided polygon
nonagon
what is the name of a ten sided polygon
decagon
what is the name of a twelve sided polygon
dodecagon
Define perpendicular bisector
Line, ray, or segment that intersects at the midpoint such that it is perpendicular to the segment
Define median
Segment of a triangle that goes from the vertex to the midpoint of the opposite side
Define reflexive property
any segment or angle is congruent to itself
What are the triangle congruency postulate?
SSS,SAS,ASA
What are the triangle congruency theorems?
AAS, HL
What is the difference between postulates and theorems?
Postulate-(axions) are accepted as true
Theorem-have been proven true
What is a polygon?
a closed figure that is the union of line segments in a plane
What is a convex polygon?
all interior angles are less than 180 degrees
What is a concave polygon?
At least one interior angle is greater than 180.
What is the transitive property?
if two quantities are equal to the same quantity then theyre equal to each other
AB=CD CD=EF AB=EF
What is the symmetric property
If a quantity is equal to a second quantity then the second quantity is equal to the first
OA=AB AB=OA
What is the addition property of equality
If equal quantities are added to equal quantities then the suma are equal
AB=DF BC=CD AB+BC=DF+CD
What is the subtraction property of equality
If equal quantities are subtracted from equal quantities then the differences are equal
AB+BC=CD BC=DE then AB=CD
What is theh multiplication property of equality
If equal quantities are multiplied by equal quantities then the profucts are equal
m
What is the division property of equality
if equal quantities are divided by equal quantities then the quotients are equal
AB=XY AB/2=XY/2
What is the substitution property of equality
A quantity may be substitued for its equal
