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anonymous
 4 years ago
A cylindrical rod has a length of 73 cm and a diameter of 1.2 mm. What is the crosssectional area in m^2?
anonymous
 4 years ago
A cylindrical rod has a length of 73 cm and a diameter of 1.2 mm. What is the crosssectional area in m^2?

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0pi*(d/2)^2 convert d to m 1.2 mm = 0.0012 m I think that's what they're asking

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0note that d/2 is actually just r, the radius and pi*r^2 is the area of a circle

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i thought the answer was 1.13e6?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0well how did you get that?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0were you able to verify that somehow, because to me that looks incorrect

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0http://answers.yahoo.com/question/index?qid=20100204064536AAIBPm2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0oh yep that is correct, sorry. my blank was forgetting to divide the diameter by 2 in my calculation. even though i stated what to do properly above aha.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0a = pi(0.0012/2)^2 that is the formula I would use. So long as it makes sense to you
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