Step-by-step explanation:
Area of rectangle= lw

Look at the picture.

For XY and ZX use the Pythagorean theorem.


The perimetero fo XYZ:

39 students....39/4 = 9 remainder 3
39/5 = 7 remainder 4
ur answer is 39
36/20 or simplified and as a mixed number would be:
1 and16/20