Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
71 Cards in this Set
 Front
 Back
Point

the basic unit of geometry. It has no size. it is infinitely small.


Line

straight arrangement of points. It has infinite length but no thickness


Plane

length and width but no thickness. It is a flat surfrace that extends forever.


collinear points

points that lie on the same line


Coplanar points

points that lie on the same plane


space

the set of all points


line segment

consists of two points and all the points between them that lie on the line containing the two points


end points

the two points at the end of a line segment


The line AB may be written as...

__ __
AB or BA 

Ray

part of a line that contains point A and all the points that are on the same side of point A.


Ray AB is written as...

__(arrow)
AB 

Vertex

The common end point of two rays that form an angle.


Sides of an Angle

the two rays that meet in vertex


Measure of an Angle

the smallest amount of rotation necessary from the overlapping position to thefinal angle.


degrees

the unit used for the measure of an angle


protractor

the grometric tool used to measure the number of degrees in an angle


Congruent segments

two segments that the same meassure


Congruent angles

two angles that are the same in measure


Incoming angle

the angle formed by the cushion and the path of the ball approaching the chushion.


outgoing angle

the angle formed by the cushion and the path of the ball leaving the cushion


Converse

reverse statement


Acute angle

An angle that s less than 90 degrees


Obtuse angle

an angle that is over 90 degrees


minpoint

The exact middle of a line segment


angle bisector

a line that cut an angle exactly in half


Parallel lines

two lines that are on the same plane and go in the same direction. They never touch and they are always equidistance from eachother


Perpendicular lines

Two lines that meet at a 90 degree angle


Pair of complemetary angles

two angles that add up to be 90 degrees


subpplementary angles

two angles that add up to be 180 degrees


Verticle angles

oppsite angles that equal eachother


polygon

closed geometric figure in a plane formed by connecting line segments endpoint to endpoint with each segent interecting exactly two others.


Convex polygon

a polygon in which no segment connecting two vertices is outside the polygon


concave polygon

polygon in which at lesat one segment connecting two vertices is outside the polygon


consecutive vertices

two vertices of a polygon that are connect by a side


consecutive sides

two sides that share a common vertex


congruent polygons

polygons that are exazctly the same size and shape


perimeter

the sum of the lengths of its sides


diagonals of polygons

a line that connects to angles that are not next to eachother


equilateral polygons

polygons whose sides are all the same length


equiangular polygons

polygon whose angles are the same measure


regular polygons

a polygons whose sides and angles are all equal


right triangle

a triangle that who has one angle that equals 90 degrees


acute triangle

a triangle whose angles are all under 90 deprees


obtuse triangle

triangle who has one angle greater than 90 deprees


scalene triangle

triangle that none of the sides are the same measure


isosceles triangle

a trianle who has two sides that are the same measure


medians of triangles

a line from the top to the bottom of a triangle that cuts the base exactly in half


altitude of a triangle

a line that describes the height of the triangle. A triangle has three different altitudes


trapezoids

a four sided figure inwhich two of the sides are parallel and the other two are not


kites

a four sided figure in which two consecutive sides are the same and the other two consecutive sides are the same size.


parallelograms

a four sided shape whose opposet sides are parallel


rhombuses

any shape whose angles are directly across from eachother (all sides are equal)


rectangles

a four sided shape whose angles are all 90 degrees


square

all angles are 90 degrees and all sides are the equalateral


prism

a shape shapes that are connected in height


pyramid

a base that meets in a point. It has a height


cylinder

two circles that connected by a height


sphere

a globe like shape.


hemisphere

have of a globe


perpendicular bisetor

line that divides the line segment into two congruent parts (bisects it) and that is also perpendicular to the line segment


transversal

a line intersecting two or more other coplanar lines


corresponding angles

angles that lie on the same place in each line


alternate interior angles

two angles are the inside of the Z that have the same measure


alternate exterior angles

two angles that are on the outside of the Z that are the same measure


y intercept

the point at which a line crosses the y axis


probability

a measure of the likelihood that an event will have a particular outcome


vertex angle

the angle between the two sides of equal lengths


base angles

two angles on the side of the base


base

the side between the two base angles


side side side

three paris of congruent sides.. a way to tell congruency


x+x, y+y
 2 
midpoint of a line segment
