Question 965889
Since you do not specify what you are trying to find, 
we will use surface area as an example:
r=xcm; h=x^2cm
Lateral area of cone={{{(pi))r(sqrt(r^2+h^2))}}}
{{{LA=(pi)(x)sqrt((x^2)+(x^2)^2)}}}
{{{LA=(pi)(x)sqrt(x^2+x^4)}}}
{{{LA=(pi)(x)sqrt((x^2)(x^2+1))}}}
{{{LA=(pi)(x^3)sqrt(X^2+1)}}}
.
Surface area of hemisphere={{{2(pi)r^2}}}
r=xcm
{{{SA=2(pi)x^2}}}
. 
Total surface area of composite:
{{{Area=(pi)(x^3)sqrt(X^2+1)+2(pi)x^2}}}={{{(pi)x^2(((x)sqrt(x^2+1))+2)}}}