1. The problem statement, all variables and given/known data Calculate the moment of inertia of a uniform triangular lamina of mass m in the shape of an isosceles triangle with base 2b and height h, about its axis of symmetry. 3. The attempt at a solution I've tried various things for this and never get the correct answer, 1/2*m*b^2. I'm beginning to think this may involve a double integral. Thanks.