Question 51428
The area of a rectangle is given as length multiplied by width.  In this case, that means 12.1*7.3, which is 88.33 square meters.  The perimeter of a rectangle is found by adding all the sides together.  Because a rectangle has 4 sides (2 lengths and 2 widths), the equation to find the perimeter is defined as {{{2l+2w}}} where l is the length and w is the width.  Substituting in your values of 12.1 and 7.3 produces the equation {{{2*12.1+2*7.3}}}, which simplifies to {{{24.2+14.6}}}, and that equates to 38.8 m.