A table can be modeled as a flat block supported by four identical legs. If the mass of the top block is 10 kg and each leg is a uniform rod with height of 1m and mass of 5 kg. Find the gravitational potential energy of the table. Take the ground as the reference level of potential energy.

mgh = 10 * 9.81 * 1 + 20 * 9.81 * (1/2)