1. The problem statement, all variables and given/known data r=2cos(theta) I want to find the area using polar integration. 2. Relevant equations area=(1/2)r^2 from 0-pi 3. The attempt at a solution When I plug everything in I get 2pi as the answer. I'm in multivariable calculus so this is very frustrating. What am I doing wrong, I don't know, but it's really really really really bugging me. I have an extra 2 somewhere and I don't know where.