Cone drilled on Curved Plate
Determine the equation to solve for the surface area of the cone drilled on the curved plate. I am looking for the surface area of the drilled cone. The plate have t-thickness (R1-r1), drilled in angle θ, plate radius r1 (inner) and outer radius R1. Since the hole is drilled in an angle θ, the top radius (R2) is greater then bottom radius (r2).