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( , Sun 1 Apr 2001, 1:00)
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6cm diameter has an area of 3x3xpi = 9pi
4cm diameter has an area of 2x2xpi = 4pi
9cm hole has an area of 4.5x4.5xpi = 20.25pi
so there's a lot of spare area. If you make an egg shape you could fit them both through at the same time. If you had someone who'd done a maths degree more recently than me they might be able to work out the minimum size of the hole.
( , Sat 2 May 2009, 22:03, 1 reply, 16 years ago)

thanks LIC
i got caught up with trying to calculate circumferences, rather than considering areas.
( , Sat 2 May 2009, 22:20, Reply)
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