please help 100 points easy question for brainliest

Answer:
height = 5 ft
Step-by-step explanation:
area of a trapezoid = [tex]\dfrac12(a+b)h[/tex]
where a and b are the bases and h is the height
Given:
[tex]\implies 25.5=\dfrac12(3.2+7)h\\\\\implies 25.5=5.1h\\\\\implies h=5[/tex]
Height be h
[tex]\\ \rm\hookrightarrow 1/2(3.2+7)h=25.5[/tex]
[tex]\\ \rm\hookrightarrow 10.2h=51[/tex]
[tex]\\ \rm\hookrightarrow h=5ft[/tex]