Question 1088234
Integrate,
{{{P=4*int((a^2*sin^2(x)+b^2*cos^2(x)),dx,x=0,pi/2)}}}
{{{P=4*int((15^2*sin^2(x)+6^2*cos^2(x)),dx,x=0,pi/2)}}}
{{{P=4*int((225*sin^2(x)+36*cos^2(x)),dx,x=0,pi/2)}}}
I used wolframaplha to solve this elliptic integral, 
{{{P=4*(17.2598)}}}
{{{P=69.04}}}{{{mm}}}