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geometric figures
shapes comprised of points, lines, or places
point
a location in space; does not have any dimensional properties
line
collection of points that extends infinitely in both directions
ray
a line that extends infinitely in only one direction is a ray
line segment
a section of line with a beginning and end
one dimensional
lines, rays, and line segments are examples of one dimensional because they can only be measured in one dimension
angles
where lines, rays, and line segments intersect; measured in degrees or radians
acute
between 0-90 degrees
obtuse
angles betwwen 90 and 180
right
exactly 90 degree angle
perpendicular
two lines that form right angle
parallel
lines that do not intersect
complementary
two angles with measurements that add up to 90 degrees
supplementary
two angles with measurements that add up to 180 degrees
linear pair
two adjacent angles; touching; supplementary
sum of angles in a triangle
180 degrees
two dimensional
measured in length and width
plane
two dimensional; extends infinitely in both dimensions
polygons
two-dimensional shape; ex: triangles and squares that have three or more straight sides the root of the word meaning many; many sides)
regular polygons
polygons with sides that are all the same length
three dimensional
objects such as cubes, can be measured in three dimensions (length, width, and height); also called solids
net
the shape of a flattened solid; ex - if you flattened all of the surfaces of a cube onto the ground
length
distance from one point to another on an object; can be found by using a tape measure or ruler
area
the size of the surface of a two-dimensional object; length times width
perimeter
distance around two dimensional figure; adding the lengths of all the sides
surface area
find area of every side of a 3D object and then add them all up
volume
amount of space that a 3D object takes up; can be found by multiplying length times width times height
circles
set of all the points in a plane that are the same distance from a fixed point
radius
distance from the center to any point on the circle
circumference
the distance around the circle
pi
the ratio of a circles circumference; 3.14
diameter
largest measurement across a circle; measurement of this is twice the measure of the radius
scalene triangle
no equal sides or angles
isosceles triangle
two eqaul sides and two equal angles
equilateral triangle
all three sides are equal and all three angles are
coordinate plane
plane containing the x and y axis
x-axis
the horizontal line
y-axis
the vertical line
points
locations on the graph
ordered pairs
(x,y) how the points are written
origin
(0,0) is called this, the original point of the graph, the middle point
statistics
the study of data
mean
the average; determined by adding all the outcomes and dividing by the total number of outcomes
median
the number in the middle when the data set is arranged in order from least to greatest
mode
most frequent outcome in the data set
range
difference between highest and lowest numbers in a data set
outliers
data points that are much different from the other data points
probability
likelihood or chance that something will happen
