Hello,
To find the area of the trapezoid. You need to know its formula which is:
A=1/2(b1+b2)×h
Put all the information that we had from the problem into this formula
36=1/2(5+7)×h
36=1/2(12)×h
36=6h
Divide 6 from both side
36/6=6h/6
h= 6 meters. As a result, the height of the trapezoid will be 6 meters. Hope it help!