it is the area of a solid object times by the square root of the perimiter
circumference
base times height minus half of the perimiter base times height minus half of the perimiter
no...it's not
Twice (length + width)
56
the area is 18
perimiter
to find the perimiter you just add up all the sides....Perimiter is the same for every figure.
The outer boundary of a body or figure.
multiply all of the sides than that is your answer
the perimiter =D
area is inside and and perimeter is outline.