Case study based question:- Shikha ,Neethu and Fabina are friends .They are very health conscious. They jog daily in the morning. Shikha jogs around a triangular park of dimensions (4ab + 3bc) meters ,(3ab+2bc)meters and (ab - bc) meters. Neetu jogs around a square park of side (2x +3y) meters and Fabina around a rectangular park of dimensions (5m + 2n)metres and (5m - 2n)meters. i) Find the distance covered by Shikha around the triangular park ?
ii) Find the area of the square park.
iii) Find the area of the rectangular park.