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Maths help required

Posted: October 7th, 2006, 6:03 pm
by Evodelta
Hello all,

Maths has never been my strong point and I'm faced with working out how to divide a circle of 60mm diameter into 3 parts of equal volume using two horizontal lines, I need to know how far apart to space the lines, hope this makes sense, please see enclosed diagram if it doesn't!

Martin.

Picture edited by GC

Posted: October 8th, 2006, 10:54 am
by TR-Spider
22.05 mm for A and C.
What do you need it for?

Posted: October 8th, 2006, 2:30 pm
by Evodelta
Perfect! This concurs exactly with what I have learned elsewhere, thankyou very much for your help, it is appreciated.

Thanks to Guy too for shrinking the picture for me, I did search all over my computer for some tool to do this, but drew a blank, I think I need something like Photoshop.....

Posted: October 10th, 2006, 7:56 am
by Guy Croft
I vote TR-Spider be the 'maths-member'!

GC

Posted: October 10th, 2006, 6:12 pm
by TR-Spider
Thanks, Guy!

just amazing what you can do with a formulary book from 1966 and excel's "goal seek" option...

Thomas