Area of parallel plat capacitor

[juggalomike]

Homework Statement

The plates of a spherical capacitor have radii 31.0 mm and 43.0 mm.
What must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance of 12.4pF

Homework Equations

C=(epsilon*A)/d

The Attempt at a Solution

12.4*10^-12=(8.85*10^-12*A)/(.012m)

so A=.0168m^2=1.68cm^2, which is incorrect?

 

[collinsmark]

so A=.0168m^2=1.68cm^2, which is incorrect?

0.0168 m² ≠ 1.68 cm².

1 square meter does not contain 100 square centimeters. Rather it contains (100 [cm]) X (100 [cm]) = 10000 square centimeters.

 

[juggalomike]

0.0168 m² ≠ 1.68 cm².

1 square meter does not contain 100 square centimeters. Rather it contains (100 [cm]) X (100 [cm]) = 10000 square centimeters.

Yep lol, thanks, my answer was correct except for the conversion