The length of a diagonal of a rectangle is $61 \ cm$. The length of one of the sides of the rectangle is $60 \ cm$. What is the perimeter of the rectangle?
A boy starts from a certain place and goes $20 \ m$ to the East. After that he goes $5 \ m$ to the North and then finally $8 \ m$ to the West. At what distance is he from the starting point?