38 terms

# geometry test #1

###### PLAY
point
an infinitely small exact location
3 undefined terms
point, line, plane
line
an infinitely long infinitely thin straight path
plane
an infinitely long infinitely wide fat surface
Axiom
a mathimatical statement which we except as true because no counter example exists
line segment
part of a line with two endpoints
ray
part of a line with one endpoint
collinear
a set of points that lie on a common line
any two points are collinear
axiom
intersection
two geometric figures points in common
parallel lines
two lines on a plane that will never intersect
skew lines
two lines that will never intersect but are not on the same plane
angle
two rays that share a common end point
degree
1/360 of a complete rotation
perpendicular
two lines that intersect at a right angle
vertical angles
two non adjacent angles formed by two intersecting lines
transversal
a line which intersects two given lines in a plane
pairs of corresponding angles
angles which: are on the same side of the transversal, one interior and one exterior, and non adjecent
alternate interior angles
both on interior, opposite sides of transversal, non adjacent
polygon
a closed figure made up of line segments with no interior reflex angles
regular polygon
a polygon with all congruent sides and all congruent angles
steps to finding perimeter
formula, substitute, simplify
isosceles triangle
a triangle with at least two congruent sides
scalene
all sides of the triangle are differnent
the sum of the measures of any triangles angles is 180
axiom
right triangle
a triangle with 1 right angle
obtuse triangle
a triangle with 1 obtuse angle
acute triangle
a triangle with all sides acute
parallelogram
a quadrelateral with both pairs of oppisite sides parallel
rectangle
a parallelogram with 4 congruent angles
trapizoid
a quadrelateral with exactly 1 pair of parallel sides
circle
the set of all points equidistant form a given point on a plane