Answer:
Perimeter of square = 4s
Perimeter of circle (circumference) = 2πr or πd, where r = radius and d = diameter
Perimeter of rectangle = 2L + 2W, where L = length and W = width
Perimeter of triangle = a + b + c, where a, b and c are the sides
Perimeter of trapezoid = a + b + c + d where a, b, c and d are the sides.
Perimeter of parallelogram = 2L + 2W, where L = length and W = width
Perimeter of rhombus = 4a, where a = sides
Perimeter of n-gon = ns, where n = no. of sides and s = side
Perimeter of Ellipse = 2π[tex]\sqrt \frac{a^2+b^2}{2}[/tex] where a and b are the axis
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