Hi there!
Perimeter is the total measures of the outside of a shape. For your problem, it is a trapezoid! In order to find the perimeter, all you need to do is add all of the outside measures. Here is the equation you would use: [ 4 + 5 + 4 3/8 + 2 3/8 = perimeter ]. Let's begin by adding the whole numbers first, leaving the fractions for last: [ 15 + 3/8 + 3/8 = perimeter ]. Now, add the fractions together: [ 15 + 6/8 = perimeter ]. Lastly, simplify the fraction and add your two values together: [ 15 3/4 = perimeter ]. The perimeter of the trapezoid is 15 3/4 cm.
If there's anything else that I can help you with, please let me know! :)
