Answer :
Perimeter of Rectangle: P=2l+2w or 2(l+w) (l=length w=width)
Perimeter of Square: P=4l (l=length)
Perimeter of Triangle: P=a+b+c (a,b,c= sides)
Perimeter of Parallelogram: P=2a+2b or 2(a+b)
Perimeter of Square: P=4l (l=length)
Perimeter of Triangle: P=a+b+c (a,b,c= sides)
Perimeter of Parallelogram: P=2a+2b or 2(a+b)