a set of closely grouped data
cluster
the size of a surface
area
a solid with two parallel and congruent polygonal spaces called bases
prism
angles that share a vertex and a side but have no interior point in common
adjacent angles
the distance around a two dimensional shape
perimeter
a function that describes a change in the position, size, of shape of a figure
transformation
output of a transformation
image
input of a transformation
pre-image
a transformation that slides a figure along a straight line
translation
a transformation that flips a figure across a line
reflection
transformation that turns a figure around a given point
rotation
having the same size ans shape
congruent
degree less than 90 degrees
acute angle
degree more than 90 degrees
obtuse angle
two or more figures that have the same shape but different sizes
similar figures
the side opposite to the right angle
hypotenuse
a sphere's distance from the center to any point on the sphere
radius
distance across a sphere
diameter
the ratio of the change in y-values (rise) and x-values (run)
slope
the y-co-ordinate of the point where the graph intersect the y-axis
y-intercept