Euclid's Muse

your source for INTERACTIVE math apps


A lemma of Archimedes

Profile picture of Phil Todd

Phil Todd

@polymnia

Uploaded

BF is perpendicular to diameter CD.  E is the intersection point of tangents at B and D.  Observe that BG = FG.

Can you prove it?

This is from the Liber Assumptorum (Book of Lemmas) translated from Arabic but attributed to Archimedes.

Tags: Archimedes, circle, tangent
thumb Open Fullscreen
Download App Link Embed
px
Paste this code into your webpage as html:

« A Three Body Problem Beat the Brachistochrone »

© Saltire Software Terms and Conditions