As an engineer analyzing a multilayer ceramic capacitor with a maximum voltage rating of 200 V and a capacitance of 2.0 μF, you need to estimate the dielectric constant of the ceramic material. The capacitor has sheet dimensions of 10.0 mm by 15.0 mm, a total thickness of 8.0 mm (excluding the outer insulator), and a dielectric strength of 40 × 10⁶V/m.