It means the distance around something. For polygons, just add the lengths of all the sides.
the area is 18
56
Twice (length + width)
area is inside and and perimeter is outline.
Add all of the sides of the shape together and you have the perimeter.
it is the area of a solid object times by the square root of the perimiter
It means the distance around something. For polygons, just add the lengths of all the sides.
circumference
no...it's not
base times height minus half of the perimiter base times height minus half of the perimiter
the area is 18
56
Twice (length + width)
perimiter
the perimiter =D
multiply all of the sides than that is your answer