1. The problem statement, all variables and given/known data integrate f(x,y) = sqrt(x^2+y^2) over triangle with vertices (0,0) (0,sqrt2) (sqrt 2, sqrt 2) 2. Relevant equations x= rcosO, y = rsinO x^2+y^2=r^2 3. The attempt at a solution im supposed to use a double integral converted to polar coordinates, so i used the bounds int. 0 to pi/4 int. 0 to sqrt 2 sec (r^2) drdO are these the correct bounds? because i cant seem to find the answer.