That would be 32. Hoped this helped you. :)
That it equals2.449 i did the math and that is what i got
G(x)=2x+3
x <span>≥ 1
g(x)=5
x is bigger then 1
</span>
We can parameterize this part of a cone by

with

and

. Then

The area of this surface (call it

) is then
You can conclude that AE = DE because the triangles are about equal