Can you please help me answer number 7?

A solid, rectangular lead bar at 20 degrees Celsius has the dimensions shown in the diagram. The resistivity of lead at 20 degrees Celsiusis 22x10^-8 ??m (the omega and m are not raised). Find the resistance between the pair of opposing faces (20cm by 30cm).

7. A solid. rectangular lead bar at 20 C has the dimensions shown in the diagram. The resistivity of lead at 20 C is 22 x 10- Q.m. 20 cm Find the resistance between the pair of opposing faces (20 em by 30 cm). 900 cm 30 cm