A cylindrical rod has a length of 73 cm and a diameter of 1.2 mm. What is the cross-sectional area in m^2?

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pi*(d/2)^2
convert d to m
1.2 mm = 0.0012 m
I think that's what they're asking

note that d/2 is actually just r, the radius
and pi*r^2 is the area of a circle

i thought the answer was 1.13e-6?

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