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Distance all the way around the outside of a shape
perimeter
Space inside a shape
area
A shape with 4 sides and 4 right angles
rectangle
A shape made by joining two or more simple shapes together
compound shape
The longer side of a shape
length
The shorter side of a shape
width
To find how long something is
measure
To join numbers together to find a total
add
To take one number away from another
subtract
Straight up-and-down lines
vertical
Straight side-to-side lines
horizontal
A special feature of a shape
property
A shape with six sides
hexagon
To find the total in groups of equal size
multiply
Smaller parts of a shape after splitting it
separate areas
Units used to measure area
square units
