Choose the correct option from the given options.
a-ii b-iii c-i
Perimeter is the continuous line forming the boundary of a closed geometrical figure. It is the sum of lengths of all the sides.
The perimeter of a scalene triangle = a + b + c
The perimeter of a rhombus = l+l+l+l= 4l
Perimeter of a parallelogram = l+b+l+b
= 2l+2b
= 2(l+b)
Hence, the correct option is 'B'.