# Linear Approximate the change in the lateral surface area (excluding the area of the base) of a right circular cone with a fixed height h=6m when its radius decreases from r=10m to r=9.9m (S=pi x r (square root of r2 +h2)

Question

Linear Approximate the change in the lateral surface area (excluding the area of the base) of a right circular cone with a fixed height h=6m when its radius decreases from r=10m to r=9.9m (S=pi x r (square root of r+h2)