My Math Forum I'm a parent going back to school part 2

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 June 20th, 2011, 11:37 AM #1 Newbie   Joined: Jun 2011 Posts: 4 Thanks: 0 I'm a parent going back to school part 2 Can someone break this simple math down for me? It's been a long time since I was in school. The area of a circle with a diameter of 240mm is: The multiple choice answers are cm2.
 June 20th, 2011, 11:46 AM #2 Newbie   Joined: Jun 2011 Posts: 4 Thanks: 0 Re: I'm a parent going back to school part 2 I have the answer key because I'm studying for a placement exam; the answer is 452.16cm2 and I was just wondering how you get that answer.
 June 20th, 2011, 12:47 PM #3 Newbie   Joined: Jun 2011 Posts: 4 Thanks: 0 Re: I'm a parent going back to school part 2 Figured it out on my own, thanks anyways.
 June 20th, 2011, 01:02 PM #4 Global Moderator   Joined: Dec 2006 Posts: 20,624 Thanks: 2077 Since ? isn't exactly 3.14, that's not quite right. The area is ?d²/4, where d is the diameter.
June 21st, 2011, 01:27 PM   #5
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Re: I'm a parent going back to school part 2

Quote:
 Originally Posted by newphorik Can someone break this simple math down for me? It's been along time since I was in school. The area of a circle with a diameter of 240mm is: The multiple choice answers are cm2.
Don't feel bad... math is something you have to love and enjoy doing. For me I have to enjoy doing it because it's a crucial part of my career.

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