Respuesta :

inspirationalgdandyt

Answer:

39 units

Step-by-step explanation:

The formula for area of trapezoid is 1/2h(a+b) where a and b are the base/parallel sides.

We have,

a=3-x

b=10+x

h=6

Now,

Area=1/2h(a+b)

       =1/2*6(3-x+10+x)=3(13)=39 units