I have V, and current for different lengths. I can get R with R=V/length. How does cross sectional area relate to the R vs. length graph?

Update: Ok, thank you for your help. I am trying to find the cross sectional area. I think I'm confused about how to find the C.S.A because I wasn't given ρ (rho). The slope of my Resistance vs. Length graph is 8.7. I would have to manipulate --> R = ρℓ / A into A = ρℓ / R . I would have the values of R and ℓ... show more Ok, thank you for your help. I am trying to find the cross sectional area. I think I'm confused about how to find the C.S.A because I wasn't given ρ (rho). The slope of my Resistance vs. Length graph is 8.7. I would have to manipulate --> R = ρℓ / A into A = ρℓ / R . I would have the values of R and ℓ but I would have two unknowns ρ and A.
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