perimeter
the distance around a polygon
polygon
A closed figure formed by three or more straight line segments
length
how long something is
dimensions
Measurement in length, width, and height
cm.
centimeter(s)
in.
inch(es)
square
a special kind of rectangle with 4 sides that are equal length
rectangle
a polygon with the two opposite sides are of equal length
triangle
a polygon with three sides
ruler
a tool to measure length
measure
to determine the size, amount, or length of something
nearest or closest
located a short distance away
around
on every side of
line segment
a part of a line between two verticies
less than
when you compare two numbers when the first number is smaller than the second number
difference
the result of subtracting one number from another
sides
line segments that form the polygon
units
a quantity used as a standard of measurement, such as inches, centimeters, yards, meters, miles.
greater than
when you compare two numbers when the first number is bigger than the second number