Response to A Question of Angle Trisection

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Subject: Re: Angle Trisection
Date: Sun 1/31/99 9:20 AM
From: Alex Bogomolny

45^o is obviously trisectable because it is constructible as is 60^o. Then 15^o = 60^o - 45^o is also constructible.

15^o is not trisectable because if it were, so would be 60^o which we know is not.

All the best,
Alexander Bogomolny

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