Unit 1
definition of congruent segments
segments that have equal length
complementary angles
2 angles whose sum measure 90 degrees
def of parallel lines
coplanar lines that do not intersect
def of congruent
figures that are the same shape and size
def of a p-gram
a quadrilateral with both pairs of opposite sides parallel
congruent angles
angles that have equal measure
supplementary angles
2 angles whose sum measures 180 degrees
skew lines
lines that are not coplanar
median of a triangle
segment from a vertex to the midpoint of the opposite side
def of rhombus
a quadrilateral with 4 congruent sides
midpoint of a segment
the point that divides a segment into 2 congruent segments
vertical angles
2 angles whose sides for 2 pairs of opposite rays
parallel planes
planes that do not intersect
altitude of a triangle
perpendicular segment from a vertex to the line that contains the opposite side
a quadrilateral with 4 congruent sides and 4 congruent angles
bisector of a segment
a segment, line, ray, or plane that intersects the segment at its midpoint
perpendicular lines
2 lines that intersect to form right angles
name 4 out of the 7 types of triangles and their definitions
answers may very but
scalene triangle = triangle with no congruent sides
isosceles triangle = a triangle with at least 2 congruent sides
equilateral triangle = a triangle with all sides congruent
acute triangle = a triangle with 3 acute angles
obtuse triangle = at triangle with one obtuse angle
right triangle = a triangle with one right angle
equiangular triangle = a triangle with all angles congruent
perpendicular bisector of a segment
A segment line or ray that is perpendicular to the segment at its midpoint
double point question
when is mrs. Grypp's birthday
October 6th
bisector an angle
the ray that divides an angle into 2 congruent adjacent angles
what is the difference between inductive and deductive reasoning
inductive = making conclusions based on patterns that could be valid but ARE NOT ALWAYS TRUE
deductive = based on facts using postulates, theorems, and definitions
True or False?
All equilateral triangles are isosceles
TRUE
an equilateral triangle exceeds the amount of sides needed for a triangle to be isosceles
name the 5 ways to solve for congruent triangles and explain the criteria
SSS = three congruent sides and 2 different triangles
SAS = 2 sides and 1 angle congruent in 2 different triangles
ASA = 2 angles and 1 side congruent in 2 different triangles
HL theorem = A triangle proven to be a right triangle and have a congruent leg and hypotenuse
AAS theorem = to angles and 1 side congruent in 2 different triangles
name all of the properties of a p-gram
opp sides parallel
opp sides congruent
opp angles congruent
diagonals bisect each other