Atmospheric pressure on the surface of earth is given as
[tex]P_a = 1.01 \times 10^5 Pa[/tex]
now the atmospheric pressure on the surface of Venus
[tex]P = 91\times P_a[/tex]
[tex]P = 9.19 \times 10^6 Pa[/tex]
now as we know that force is the product of pressure and area
[tex]F = PA[/tex]
given that
[tex]A = 1.8 m^2[/tex]
now from above formula
[tex]F = 9.19 \times 10^6 (1.8) = 1.65 \times 10^7 N[/tex]