How does thickness of a wire affect resistance?

Resistance is inversely proportional to cross-sectional area. so ,if the thickness of the wire increases, the area of cross-section increases and this results in decrease of the resistance.

The resistance R = l p / A

where R is the resistance, l is the length of the wire, p(rho) is the electrical resistivity of the material and A is the area of cross section.

So R the resistance is inversely proportional to A the area of cross-section. If R increases