Answer:
Step-by-step explanation:
Formula for calculating the area of a trapezoid is expressed as shown;
[tex]Area = \frac{a+b}{2} * h[/tex]
a and b are the length of the bases of the trapezoid and h is its height
Given a = 1.2miles, b = 2.4miles, Area = 7.2 square miles
Substituting this values into the formula to get the height;
7.2 = [tex]\frac{1.2+2.4}{2}*h[/tex]
[tex]14.4 = 3.6h\\Dividing\ both\ sides\ by\ 3.6\\14.4/3.6 = 3.6h/3.6\\h =4 miles[/tex]
The height of the trapezoid is 4miles
